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Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo
Open accessAbstract
Proteomic analysis of histones has shown that they are subject to a superabundance of acylations, which extend far beyond acetylation, to include: crotonylation, propionylation, butyrylation, malonylation, succinylation, β-hydroxybutyrylation and 2-hydroxyisobutyrylation. To date, much of the functional data has focussed on histone crotonylation which, similar to acetylation, has been associated with positive gene regulation and is added by the acyltransferase, p300. Although Sirtuins 1–3, along with HDAC3, have been shown to possess decrotonylase activity in vitro, there is relatively little known about the regulation of histone crotonylation in vivo. Here we show that Histone Deacetylase 1 and 2 (HDAC1/2), the catalytic core of numerous co-repressor complexes, are important histone decrotonylase enzymes. A ternary complex of HDAC1/CoREST1/LSD1 is able to hydrolyse both histone H3 Lys18-acetyl (H3K18ac) and H3 Lys18-crotonyl (H3K18cr) peptide substrates. Genetic deletion of HDAC1/2 in ES cells increases global levels of histone crotonylation and causes an 85% reduction in total decrotonylase activity. Furthermore, we mapped H3K18cr in cells using ChIP-seq, with and without HDAC1/2, and observed increased levels of crotonylation, which largely overlaps with H3K18ac in the vicinity of transcriptional start sites. Collectively, our data indicate that HDAC1/2 containing complexes are critical regulators of histone crotonylation in vivo.
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TL;DR
HDAC1/2-containing complexes act as histone decrotonylases in vitro and in mouse ES cells; deletion of HDAC1/2 increases global H3K18ac and H3K18cr and reduces total decrotonylase activity by 85%. ChIP-seq shows H3K18cr overlaps H3K18ac near transcription start sites and increases at active/bivalent genes upon HDAC1/2 loss.
Key findings
- A recombinant HDAC1/CoREST1/LSD1 ternary complex hydrolysed both H3K18ac and H3K18cr peptides, with a lower initial rate for decrotonylation than deacetylation; InsP6 increased the initial deacetylation rate 3.2-fold and decrotonylation rate 1.8-fold. HDAC3/SMRT/GPS2/TBL1 also showed decrotonylase activity, with an initial rate 2.4-fold lower for H3K18cr than H3K18ac.
- In ES cells, LBH589 treatment increased H3K18cr 3.2-fold and H3K18ac 2.6-fold in a dose-dependent manner; both marks doubled within 2 hours.
- HDAC1/2 double knockout ES cells showed 2.3-fold higher H3K18ac and 2.2-fold higher H3K18cr, plus 1.8-fold higher total H3 crotonylation and 1.7-fold higher H4 crotonylation; total decrotonylase activity was reduced by 85%, while deacetylase activity was 56% of control.
- ChIP-seq in control and HDAC1/2 DKO ES cells showed H3K18cr peaks near TSS overlapping H3K18ac; loss of HDAC1/2 increased average H3K18ac and H3K18cr around TSS, with up to 4-fold increases in H3K18cr at loci such as Lactb and Anapc5, and increased H3K18cr correlated with upregulated genes (p < 0.0001) and GO enrichment overlap (R² = 0.929, p < 0.0001).
Methods
- In vitro deacetylase/decrotonylase assays used Caliper EZ Reader II with 500 nM recombinant HDAC1/CoREST1/LSD1 or HDAC3/SMRT/GPS2/TBL1 complexes and fluorescein-labelled H3K18ac, H3K18cr, and H4K16ac peptides, with or without InsP6.
- Cell assays used mouse ES cells and HEK-293T cells; conditional Hdac1/2 deletion was induced with 1 µM tamoxifen (OHT), HDAC inhibition with LBH589, and activity measured with Boc-Lys(Ac)-AMC and Boc-Lys(Cr)-AMC substrates, plus quantitative western blotting and co-immunoprecipitation with HDAC2/LSD1 antisera.
- ChIP-seq for H3K18ac and H3K18cr was performed in control and DKO ES cells using native ChIP and Illumina HiSeq4000 75 bp sequencing; reads were mapped to mm9, peaks called with MACS, and analyses used deepTools and DAVID, with data deposited at GEO GSE116019.
Limitations
- Paper-stated: prior in vitro studies with isolated recombinant enzymes may not reflect physiological activity, and class-I HDAC activity in vivo depends on binding to complex partners; the paper also notes that in vitro decrotonylation was slower than deacetylation, whereas cellular recovery showed little difference, possibly due to isolated histone-tail peptides versus intact nucleosomes or cooperating factors.
- Evident: the in vitro assays use peptide substrates rather than intact nucleosomes, and the genetic and ChIP-seq findings are largely in mouse ES cells, so generalizability to other cell types or tissues is not established here.
- Evident: some in vitro data are from n = 2 technical replicates (Fig. 1), and although HDAC3 knockout showed no significant global change in H3K18ac/H3K18cr, the paper states this does not preclude locus-specific regulation.
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![Figure 4 Loss of HDAC1/2 leads to a global increase in H3K18cr and H3K18ac. (A) Average ChIP coverage levels of H3K18ac and H3K18cr in Ctrl and DKO ES cells at transcriptional start sites (TSS) 5,000 bp upstream and downstream. (B) ChIP-seq density heatmaps in Ctrl and DKO ES cells for H3K18ac and H3K18cr at TSS ±5,000 bp, ranked by increase in acetylation or crotonylation following Hdac1/2 deletion. Red dotted line indicates the top 10% of genes enriched for H3K18ac and H3K18cr. (C) Heatmap of HDAC1 and 2 densities [as defined in Whyte et al.38] at TSS sites ±5,000 bp ranked by H3K18cr levels in Ctrl cells. (D) IGV enrichment tracks of H3K18ac and H3K18cr at the three representative genes: Rps27l, Lactb and Anapc5. The gene structure and dimensions are indicated in each panel.](/paper-figures/45fc9b2a5af94a98bcf584e0458cd7b2/histone-deacetylase-hdac-1-and-2-complexes-regulate-both-histone-acetylation-and-figure-4.jpg)
![Figure 5 Loss of HDAC1/2 regulates H3K18cr levels associated with active gene expression. Average levels of H3K18ac and H3K18cr in Ctrl and DKO ES cells: (A) at upregulated genes following the loss of HDAC1/2 [as defined in Jamaladdin et al.29]; and (B) genes associated with bivalent histone signatures [as defined in Mikkelsen et al.36]. Acetylation level was calculated using DEEPTOOLS for each promoter, defined as the region between ±500 bp of the TSS, and presented in log2 scale. (C) Functional annotation analysis of the top 10% of genes enriched for either H3K18cr or H3K18ac (Fig. 4B; red line). DAVID was used to identify biological process (BP) and gene ontology (GO). (D) Regression analysis of false discovery rate (FDR) from enriched GO terms for both H3K18ac and H3K18cr. Data presented in log10 scale.](/paper-figures/01e6f4687919455fbf9c2c687081b4f4/histone-deacetylase-hdac-1-and-2-complexes-regulate-both-histone-acetylation-and-figure-5.jpg)
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Claims the paper makes
41 Own result · 28 Not checked yet · 7 Own interpretation · 1 Own method · 1 No basis given
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In the paper
“Interestingly, both H3K18 modifications were hydrolysed at a reduced rate compared to H4K16Ac (Fig. 1C), indicating that there may be a hierarchy of acylated sites among histone tails.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates
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In the paper
“HDAC1 was able to deacylate both H3K18ac and H3K18cr substrates (Fig. 1A,B), although the initial rate of decrotonylation was lower than deacetylation.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates
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In the paper
“A ternary complex of HDAC1/CoREST1/LSD1 is able to hydrolyse both histone H3 Lys18-acetyl (H3K18ac) and H3 Lys18-crotonyl (H3K18cr) peptide substrates.”
- Also stated in: § HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates · plain
“HDAC1 was able to deacylate both H3K18ac and H3K18cr substrates (Fig. 1A,B), although the initial rate of decrotonylation was lower than deacetylation.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Abstract
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- Also stated in: § HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates · plain
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In the paper
“We also observed an enrichment for H3K18cr at active genes, such Nanog and Pou5f1 (Fig. 4B) consistent with a role for histone crotonylation in active gene expression9,39.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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- Rests on an assumption: The H3K18cr antibody used for native ChIP specifically detects H3K18cr.
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In the paper
“Cross-referencing the 1,445 genes up-regulated genes in DKO cells to our ChIP-seq dataset revealed a strong correlation between increased transcription and an increase in H3K18cr (Fig. 5A, p < 0.0001) and H3K18ac (p < 0.0001) levels.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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In the paper
“Genetic deletion of HDAC1/2 in ES cells increases global levels of histone crotonylation and causes an 85% reduction in total decrotonylase activity.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Abstract
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- Rests on an assumption: The changes in histone crotonylation levels upon HDAC1/2 deletion are due to loss of HDAC1/2 decrotonylase activity rather than indirect effects on other enzymes.
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In the paper
“Individual genes, such as Htra1, Hes6 and Nagk, whose expression increased 2.7, 1.6 and 2.1-fold respectively, showed corresponding increases in H3K18ac and H3K18cr levels (Supplementary Fig. S4).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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In the paper
“In this study, we show that HDAC1/2 and HDAC3 are active decrotonylase enzymes in vitro using recombinant purified co-repressor complexes (Fig. 1A and Supplementary Fig. 1B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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In the paper
“A time course of LBH589 treatment revealed that both H3K18ac and H3K18cr levels double within 2 hours (Fig. 2D), indicating that the dynamics of acetylation/crotonylation are similar in cells.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC inhibition in cells increases both H3K18ac and H3K18cr in a dose-dependent manner
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In the paper
“Intriguingly, we also observed increased levels of both H3K18ac and H3K18cr at bivalent genes (Fig. 5B), that is, poised genes marked with both H3K4me3 and H3K27me3 in ES cells35,36, suggesting a role for HDAC1/2 in controlling the activity of developmentally regulated genes prior to ES cell differentiation.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
What the sources say
- Not checked yetcites [35] Bernstein, B. E. et al. A bivalent chromatin structure marks key developmental genes in embryonic stem cells. Cell 125, 315–326, https://doi.org/10.1016/j.cell.2006.02.041 (2006). source
- Not checked yetcites [36] Mikkelsen, T. S. et al. Genome-wide maps of chromatin state in pluripotent and lineage-committed cells. Nature 448, 553–560, https://doi.org/10.1038/nature06008 (2007). source
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In the paper
“Genetic deletion of HDAC1/2 in ES cells increases global levels of histone crotonylation and causes an 85% reduction in total decrotonylase activity.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Abstract
plaindirect- Asserted: passes — The authors put it forward as true.
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- Rests on an assumption: The changes in histone crotonylation levels upon HDAC1/2 deletion are due to loss of HDAC1/2 decrotonylase activity rather than indirect effects on other enzymes.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Both HDAC2 and LSD1 related complexes demonstrated substantial decrotonylase activity (Fig. 3A).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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In the paper
“Treatment of ES cells with LBH589, a broad spectrum inhibitor of Zn2+-HDAC enzymes (HDACs 1–11) increased the levels of both H3K18cr (3.2-fold) and H3K18ac (2.6-fold) in a dose dependent manner (Fig. 2C).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC inhibition in cells increases both H3K18ac and H3K18cr in a dose-dependent manner
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“Consistent with this mechanism, gene ontology (GO) analysis of the top 10% of genes enriched for either H3K18cr or H3K18ac upon HDAC1/2 deletion (Fig. 4B; red line), revealed functional enrichment for genes with roles in embryonic morphogenesis and embryo development (Fig. 5C).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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“In the absence of HDAC1/2 we observed a significant decrease in both deacetylase (Fig. 3C) and decrotonylase (Fig. 3D) activity.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“Cross-referencing the 1,445 genes up-regulated genes in DKO cells to our ChIP-seq dataset revealed a strong correlation between increased transcription and an increase in H3K18cr (Fig. 5A, p < 0.0001) and H3K18ac (p < 0.0001) levels.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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“These elevated levels appear be largely at pre-existing sites of acetylation/crotonylation rather than de novo loci (Fig. 4B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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“To assess whether loss of HDAC1/2 altered the expression of other decrotonylases, we examined HDAC3 protein levels in DKO cells, but found no change (Fig. 3B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“Moreover, using a pan-crotonyl antibody, we were able to detect a 1.8-fold and 1.7-fold increase in total H3 and H4 crotonylation (Fig. 3B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“Indeed, decrotonylation activity was reduced by 85% compared to controls, while HDAC activity was only 56% of control levels (Fig. 3E).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“In addition, we also examined H3K18ac and H3K18cr levels in HDAC3 knockout cells and found no significant changes (Supplementary Fig. 3B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“Following deletion of HDAC1/2, quantitative western blotting revealed a 2.3-fold and 2.2-fold increase in H3K18ac and H3K18cr, respectively (Fig. 3B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“In the absence of HDAC1/2 we observed a significant decrease in both deacetylase (Fig. 3C) and decrotonylase (Fig. 3D) activity.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“Indeed, decrotonylation activity was reduced by 85% compared to controls, while HDAC activity was only 56% of control levels (Fig. 3E).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“Treatment of ES cells with LBH589, a broad spectrum inhibitor of Zn2+-HDAC enzymes (HDACs 1–11) increased the levels of both H3K18cr (3.2-fold) and H3K18ac (2.6-fold) in a dose dependent manner (Fig. 2C).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC inhibition in cells increases both H3K18ac and H3K18cr in a dose-dependent manner
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“At specific gene loci, such as Lactb or Anapc5 (Fig. 4D), we observed increases in H3K18cr of up to 4-fold following HDAC1/2 deletion.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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“Following deletion of HDAC1/2, quantitative western blotting revealed a 2.3-fold and 2.2-fold increase in H3K18ac and H3K18cr, respectively (Fig. 3B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“Moreover, using a pan-crotonyl antibody, we were able to detect a 1.8-fold and 1.7-fold increase in total H3 and H4 crotonylation (Fig. 3B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“However, this was not observed for decrotonylase activity, where loss of HDAC1/2 resulted in little or no detectable decrotonylation activity (Fig. 3D).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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“when we examined the rate of decrotonylation in cells (inhibitor treatment followed by wash-out and recovery, Supplementary Fig. S2C), we found there was little difference between deacetylation and decrotonylation rates.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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“we show that an HDAC1/CoREST1/LSD1 ternary (Fig. 1) and HDAC3/SMRT/GPS2/TBL1 (Supplementary Fig. S1B) quaternary complex are able to turnover H3K18cr, albeit at a reduced rate compared to the equivalent acetylated substrate.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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“However, these studies were performed in vitro with recombinant enzymes produced in isolation and therefore do not fully address the physiological role of Lys-cr erasers in a cellular context.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
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“Both Lys-ac and Lys-cr share a common ‘writer’ in the acyltransferase and co-activator protein, p3009.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [9] Sabari, B. R. et al. Intracellular crotonyl-CoA stimulates transcription through p300-catalyzed histone crotonylation. Molecular cell 58, 203–215, https://doi.org/10.1016/j.molcel.2015.02.029 (2015). source
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“Recently, HDAC1/2 have been implicated in the regulation of histone crotonylation levels in cells21,22.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [21] Wei, W. et al. Class I histone deacetylases are major histone decrotonylases: evidence for critical and broad function of histone crotonylation in transcription. Cell Res 27, 898–915, https://doi.org/10.1038/cr.2017.68 (2017). source
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
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In the paper
“Together these data demonstrate that both HDAC1 and HDAC3 containing complexes are active decrotonylases.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates
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- Rests on an assumption: The HDAC1/CoREST1/LSD1 ternary complex is representative of HDAC1/2-containing co-repressor complexes for decrotonylase activity.
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In the paper
“Previous studies failed to detect significant decrotonylase activity for HDAC1/23,18 and this may be because they were using recombinant enzymes generated in isolation.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [3] Tan, M. et al. Identification of 67 histone marks and histone lysine crotonylation as a new type of histone modification. Cell 146, 1016–1028, https://doi.org/10.1016/j.cell.2011.08.008 (2011). source
- Not checked yetcites [18] Madsen, A. S. & Olsen, C. A. Profiling of substrates for zinc-dependent lysine deacylase enzymes: HDAC3 exhibits decrotonylase activity in vitro. Angew Chem Int Ed Engl 51, 9083–9087, https://doi.org/10.1002/anie.201203754 (2012). source
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In the paper
“Collectively, our data indicate that HDAC1/2 containing complexes are critical regulators of histone crotonylation in vivo.”
- Also stated in: § Introduction · hedged
“Collectively, these data indicate that HDAC1/2 containing complexes are critical regulators of histone crotonylation in vivo.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Abstract
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- Rests on an assumption: The HDAC1/CoREST1/LSD1 ternary complex is representative of HDAC1/2-containing co-repressor complexes for decrotonylase activity.
- Rests on an assumption: ES cells are a valid model for in vivo regulation of histone crotonylation.
- Also stated in: § Introduction · hedged
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In the paper
“Here we show that Histone Deacetylase 1 and 2 (HDAC1/2), the catalytic core of numerous co-repressor complexes, are important histone decrotonylase enzymes.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Abstract
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In the paper
“These results demonstrate that HDAC1/2 are the dominant decrotonylases in ES cells.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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In the paper
“consistent with a role for histone crotonylation in active gene expression9,39.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [9] Sabari, B. R. et al. Intracellular crotonyl-CoA stimulates transcription through p300-catalyzed histone crotonylation. Molecular cell 58, 203–215, https://doi.org/10.1016/j.molcel.2015.02.029 (2015). source
- Not checked yetcites [39] Montellier, E., Rousseaux, S., Zhao, Y. & Khochbin, S. Histone crotonylation specifically marks the haploid male germ cell gene expression program: post-meiotic male-specific gene expression. Bioessays 34, 187–193, https://doi.org/10.1002/bies.201100141 (2012). source
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In the paper
“This difference in activity suggests that HDAC2 acts as a histone decrotonylase, consistent with data from Wei et al.21 and that total decrotonylase activity (similar to deacetylase) correlates with the total amount of HDAC1/2.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
What the sources say
- Not checked yetcites [21] Wei, W. et al. Class I histone deacetylases are major histone decrotonylases: evidence for critical and broad function of histone crotonylation in transcription. Cell Res 27, 898–915, https://doi.org/10.1038/cr.2017.68 (2017). source
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In the paper
“This difference in activity suggests that HDAC2 acts as a histone decrotonylase, consistent with data from Wei et al.21 and that total decrotonylase activity (similar to deacetylase) correlates with the total amount of HDAC1/2.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
What the sources say
- Not checked yetcites [21] Wei, W. et al. Class I histone deacetylases are major histone decrotonylases: evidence for critical and broad function of histone crotonylation in transcription. Cell Res 27, 898–915, https://doi.org/10.1038/cr.2017.68 (2017). source
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In the paper
“Intriguingly, we also observed increased levels of both H3K18ac and H3K18cr at bivalent genes (Fig. 5B), that is, poised genes marked with both H3K4me3 and H3K27me3 in ES cells35,36, suggesting a role for HDAC1/2 in controlling the activity of developmentally regulated genes prior to ES cell differentiation.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
What the sources say
- Not checked yetcites [35] Bernstein, B. E. et al. A bivalent chromatin structure marks key developmental genes in embryonic stem cells. Cell 125, 315–326, https://doi.org/10.1016/j.cell.2006.02.041 (2006). source
- Not checked yetcites [36] Mikkelsen, T. S. et al. Genome-wide maps of chromatin state in pluripotent and lineage-committed cells. Nature 448, 553–560, https://doi.org/10.1038/nature06008 (2007). source
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In the paper
“This demonstrates a concomitant relationship between HDAC1/2 gene regulation and histone crotonylation levels.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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In the paper
“this is the first genetic link between HDACs and decrotonylase activity in cells”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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In the paper
“The activity of class-I HDACs in vivo is dependent upon binding to an activating partner, part of a multi-protein complex19,20, as typified by HDAC1/CoREST/LSD1 and HDAC3/SMRT/GPS2/TBL1.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [19] Kelly, R. D. & Cowley, S. M. The physiological roles of histone deacetylase (HDAC) 1 and 2: complex co-stars with multiple leading parts. Biochemical Society transactions 41, 741–749, https://doi.org/10.1042/BST20130010 (2013). source
- Not checked yetcites [20] Millard, C. J., Watson, P. J., Fairall, L. & Schwabe, J. W. Targeting Class I Histone Deacetylases in a “Complex” Environment. Trends Pharmacol Sci 38, 363–377, https://doi.org/10.1016/j.tips.2016.12.006 (2017). source
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In the paper
“At the end-point of the assay we were also able to measure the percentage conversion of each substrate, which was similarly reduced for H3K18cr compared to H3K18ac, suggesting that the crotonyl-lysine is turned over more slowly than the corresponding acetyl mark.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates
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In the paper
“The initial rate of deacetylation and decrotonylation was increased 3.2-fold and 1.8-fold respectively by the addition of InsP6 to the HDAC1/CoREST/LSD1 complex (Fig. 1A,B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates
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In the paper
“Upon using extended incubation times (>6 hours) extracts from both ES cells and HEK-293T cells displayed robust decrotonylase activity which correlated with protein concentration (Fig. 2A,B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC inhibition in cells increases both H3K18ac and H3K18cr in a dose-dependent manner
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In the paper
“Consistent with previously published data18 HDAC3 also displayed significant activity against the H3K18cr peptide (Supplementary Fig. 1B), although similar to HDAC1, with an initial rate which was 2.4-fold lower than the H3K18ac substrate.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1 functions as a histone decrotonylase whose activity is modulated by inositol phosphates
What the sources say
- Not checked yetcites [18] Madsen, A. S. & Olsen, C. A. Profiling of substrates for zinc-dependent lysine deacylase enzymes: HDAC3 exhibits decrotonylase activity in vitro. Angew Chem Int Ed Engl 51, 9083–9087, https://doi.org/10.1002/anie.201203754 (2012). source
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In the paper
“In contrast, we observed a small but significant increase in H3K18cr in the vicinity of TSS upon deletion of HDAC1/2 of in ES cells (Fig. 4A), which is more pronounced at specific promoters (Lactb and Anapc5, Fig. 4D).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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- Rests on an assumption: The H3K18cr antibody used for native ChIP specifically detects H3K18cr.
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In the paper
“Furthermore, we mapped H3K18cr in cells using ChIP-seq, with and without HDAC1/2, and observed increased levels of crotonylation, which largely overlaps with H3K18ac in the vicinity of transcriptional start sites.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Abstract
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- Rests on an assumption: The changes in histone crotonylation levels upon HDAC1/2 deletion are due to loss of HDAC1/2 decrotonylase activity rather than indirect effects on other enzymes.
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In the paper
“This is perhaps unsurprising since HDAC1/2 themselves (Fig. 4C) and their related complex components, Sin3A37 and LSD138, all map within the vicinity of TSS.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [37] Williams, K. et al. TET1 and hydroxymethylcytosine in transcription and DNA methylation fidelity. Nature 473, 343–348, https://doi.org/10.1038/nature10066 (2011). source
- Not checked yetcites [38] Whyte, W. A. et al. Enhancer decommissioning by LSD1 during embryonic stem cell differentiation. Nature 482, 221–225, https://doi.org/10.1038/nature10805 (2012). source
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In the paper
“Furthermore, by plotting the false discovery rate (FDR) of enriched GO terms for both H3K18ac and H3K18cr we observed an R2 = 0.929 correlation (p < 0.0001), indicating a significant overlap in the function of these two acylations in ES cells (Fig. 5D).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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In the paper
“We have shown that deletion of HDAC1/2 in ES cells caused an 85% reduction in total decrotonylase activity; this is the first genetic link between HDACs and decrotonylase activity in cells.”
- Also stated in: § Discussion · boosted
“Furthermore, genetic deletion of HDAC1/2 from ES cells reveals them to be critical enzymes in the regulation of H3K18cr levels, in terms of total decrotonylase activity (Fig. 3) and the regulation of histone crotonylation at specific genomic loci (Fig. 4).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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In the paper
“Loss of HDAC1/2 increases the average levels of both H3K18ac and H3K18cr around the TSS (Ctrl vs DKO), with a more pronounced increase observed for H3K18ac.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
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In the paper
“In contrast to previously published data22, we observed increased levels of histone crotonylation upon loss of HDAC1/2 activity which largely overlaps with H3K18ac at TSS and correlates with gene activity.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
plaindirect- Asserted: passes — The authors put it forward as true.
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- Rests on an assumption: The changes in histone crotonylation levels upon HDAC1/2 deletion are due to loss of HDAC1/2 decrotonylase activity rather than indirect effects on other enzymes.
In the paper
“In line with previous findings9, we observed that H3K18cr levels peak in the vicinity of transcription start sites (TSS) with a significant overlap with H3K18ac (Fig. 4A).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
What the sources say
- Not checked yetcites [9] Sabari, B. R. et al. Intracellular crotonyl-CoA stimulates transcription through p300-catalyzed histone crotonylation. Molecular cell 58, 203–215, https://doi.org/10.1016/j.molcel.2015.02.029 (2015). source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“A comparison of H3K18ac and H3K18cr in ES cells revealed a significant overlap in loci, with the increase in abundance upon HDAC1/2 deletion occurring at pre-existing sites.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
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- Rests on an assumption: The H3K18cr antibody used for native ChIP specifically detects H3K18cr.
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In the paper
“HDAC1-KO; HDAC2-Het cells showed increased levels of H3K18ac (1.5-fold) and histone H3 crotonylation (1.5-fold; Pan-Cr; Supplementary Fig. S2B), although these increases are smaller than those observed in DKO cells (Fig. 3B).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 are the dominant histone decrotonylases in ES cells
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In the paper
“Surprisingly, given the difference in initial rates measured using the caliper assay in vitro (Fig. 1), we detect little or no difference in the recovery time, suggesting that the rate of decrotonylation is similar to deacetylation in cells (Supplementary Fig. S2C).”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC inhibition in cells increases both H3K18ac and H3K18cr in a dose-dependent manner
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In the paper
“siRNA knockdown of HDAC1/221 or treatment with HDAC inhibitors22 caused increased levels of histone crotonylation; although counterintuitively, the average level of H3K18cr at transcriptional start sites (TSS) was reduced following HDAC inhibitor treatment22.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
plaindirect- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“siRNA knockdown of HDAC1/221 or treatment with HDAC inhibitors22 caused increased levels of histone crotonylation; although counterintuitively, the average level of H3K18cr at transcriptional start sites (TSS) was reduced following HDAC inhibitor treatment22.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [21] Wei, W. et al. Class I histone deacetylases are major histone decrotonylases: evidence for critical and broad function of histone crotonylation in transcription. Cell Res 27, 898–915, https://doi.org/10.1038/cr.2017.68 (2017). source
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
plaindirect- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“However, Lys-ac and Lys-cr may be interpreted differently, since they are recognized by distinct readers, in the bromodomain10 and Yeats domain11 respectively.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [10] Dhalluin, C. et al. Structure and ligand of a histone acetyltransferase bromodomain. Nature 399, 491–496, https://doi.org/10.1038/20974 (1999). source
- Not checked yetcites [11] Li, Y. et al. Molecular Coupling of Histone Crotonylation and Active Transcription by AF9 YEATS Domain. Molecular cell 62, 181–193, https://doi.org/10.1016/j.molcel.2016.03.028 (2016). source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“A study profiling substrate preferences of HDAC1–11 identified HDAC3 as a potential decrotonylase18.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [18] Madsen, A. S. & Olsen, C. A. Profiling of substrates for zinc-dependent lysine deacylase enzymes: HDAC3 exhibits decrotonylase activity in vitro. Angew Chem Int Ed Engl 51, 9083–9087, https://doi.org/10.1002/anie.201203754 (2012). source
hedgedconditional- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“Unsurprisingly, given the range of their potential substrates, sirtuins 1, 216 and 317 were shown to be decrotonylases in vitro.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [16] Feldman, J. L., Baeza, J. & Denu, J. M. Activation of the protein deacetylase SIRT6 by long-chain fatty acids and widespread deacylation by mammalian sirtuins. The Journal of biological chemistry 288, 31350–31356, https://doi.org/10.1074/jbc.C113.511261 (2013). source
- Not checked yetcites [17] Bao, X. et al. Identification of ‘erasers’ for lysine crotonylated histone marks using a chemical proteomics approach. Elife 3, https://doi.org/10.7554/eLife.02999 (2014). source
plaindirect- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“HDAC1 and HDAC2 (HDAC1/2) are highly related deacetylases that form the catalytic core of multiple co-repressor complexes, including, Sin3, NuRD, CoREST and MiDAC19,20.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [19] Kelly, R. D. & Cowley, S. M. The physiological roles of histone deacetylase (HDAC) 1 and 2: complex co-stars with multiple leading parts. Biochemical Society transactions 41, 741–749, https://doi.org/10.1042/BST20130010 (2013). source
- Not checked yetcites [20] Millard, C. J., Watson, P. J., Fairall, L. & Schwabe, J. W. Targeting Class I Histone Deacetylases in a “Complex” Environment. Trends Pharmacol Sci 38, 363–377, https://doi.org/10.1016/j.tips.2016.12.006 (2017). source
plaindirect- Asserted: passes — The authors put it forward as true.
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- Load-bearing: passes — The paper’s conclusions depend on it.
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Probably not a substantial claim.
None of the sources cited for this claim have been checked yet.
In the paper
“A number of functional studies have concentrated on histone lysine-crotonylation (Lys-cr) which is associated with active chromatin and overlaps with known sites of lysine-acetylation (Lys-ac)3,9.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Introduction
What the sources say
- Not checked yetcites [3] Tan, M. et al. Identification of 67 histone marks and histone lysine crotonylation as a new type of histone modification. Cell 146, 1016–1028, https://doi.org/10.1016/j.cell.2011.08.008 (2011). source
- Not checked yetcites [9] Sabari, B. R. et al. Intracellular crotonyl-CoA stimulates transcription through p300-catalyzed histone crotonylation. Molecular cell 58, 203–215, https://doi.org/10.1016/j.molcel.2015.02.029 (2015). source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“Although treatment of HCT-116 cells with MS-275 increased the global levels of H3K18cr, ChIP-seq showed a reduction in H3K18cr levels around transcriptional start sites22.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“More recently, Fellows et. al. (2018) provided evidence that class-I HDACs regulate levels of histone decrotonylation in the intestine in response to short chain fatty acids generated by the microbiota of the gut22.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“These increases in histone crotonylation appear to be correlated with corresponding changes in H3K18ac, suggesting that HDAC1/2 co-ordinately regulate both histone modifications at specific sites.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Wei et al.21 demonstrated that overexpression of class I HDACs (HDAC1, 2, 3 and 8) in HeLa cells were able to decrease global histone crotonylation levels, while knock-down or HDAC inhibitor treatment produced the opposite effect21.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [21] Wei, W. et al. Class I histone deacetylases are major histone decrotonylases: evidence for critical and broad function of histone crotonylation in transcription. Cell Res 27, 898–915, https://doi.org/10.1038/cr.2017.68 (2017). source
boosteddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“This is not surprising, since HDAC1/2 map predominantly to TSS (Fig. 4C) with a positive correlation between binding and gene activity33,34.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Results > HDAC1/2 regulates H3K18cr levels at active gene loci
What the sources say
- Not checked yetcites [33] Wang, Z. et al. Genome-wide mapping of HATs and HDACs reveals distinct functions in active and inactive genes. Cell 138, 1019–1031, https://doi.org/10.1016/j.cell.2009.06.049 (2009). source
- Not checked yetcites [34] Kurdistani, S. K., Robyr, D., Tavazoie, S. & Grunstein, M. Genome-wide binding map of the histone deacetylase Rpd3 in yeast. Nature genetics 31, 248–254, https://doi.org/10.1038/ng907 (2002). source
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“This is consistent with data from Madsen and Olson18, who showed that the HDAC3/NCoR complex also hydrolysed Lys-cr at a lower rate than Lys-ac, although still comparable to the deacetylase activities of HDAC8 and HDAC11.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [18] Madsen, A. S. & Olsen, C. A. Profiling of substrates for zinc-dependent lysine deacylase enzymes: HDAC3 exhibits decrotonylase activity in vitro. Angew Chem Int Ed Engl 51, 9083–9087, https://doi.org/10.1002/anie.201203754 (2012). source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“Indeed, data from Fellows et al., showed that purified HDAC1, 2 and 3 are able to reduce the levels of H3K18 butyrlation in vitro22.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“To date, decrotonylase activity has been described for HDAC1-3 and Sirtuins 1-316–18,21,22.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [16] Feldman, J. L., Baeza, J. & Denu, J. M. Activation of the protein deacetylase SIRT6 by long-chain fatty acids and widespread deacylation by mammalian sirtuins. The Journal of biological chemistry 288, 31350–31356, https://doi.org/10.1074/jbc.C113.511261 (2013). source
- Not checked yetcites [17] Bao, X. et al. Identification of ‘erasers’ for lysine crotonylated histone marks using a chemical proteomics approach. Elife 3, https://doi.org/10.7554/eLife.02999 (2014). source
- Not checked yetcites [18] Madsen, A. S. & Olsen, C. A. Profiling of substrates for zinc-dependent lysine deacylase enzymes: HDAC3 exhibits decrotonylase activity in vitro. Angew Chem Int Ed Engl 51, 9083–9087, https://doi.org/10.1002/anie.201203754 (2012). source
- Not checked yetcites [21] Wei, W. et al. Class I histone deacetylases are major histone decrotonylases: evidence for critical and broad function of histone crotonylation in transcription. Cell Res 27, 898–915, https://doi.org/10.1038/cr.2017.68 (2017). source
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“All reactions were carried out in duplicate in 30 µl reaction volumes, performed at room temperature in 50 mM Tris pH 7.5, 50 mM NaCl, 5% glycerol.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Methods > In vitro Histone Deacetylation (HDAC) and decrotonylation (HDCR) Assays
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“Mass-spectrometry data has shown that there are an abundance of histone crotonylation sites in all four core histones22,40.”
§ Histone deacetylase (HDAC) 1 and 2 complexes regulate both histone acetylation and crotonylation in vivo > Discussion
What the sources say
- Not checked yetcites [22] Fellows, R. et al. Microbiota derived short chain fatty acids promote histone crotonylation in the colon through histone deacetylases. Nat Commun 9, 105, https://doi.org/10.1038/s41467-017-02651-5 (2018). source
- Not checked yetcites [40] Tan, M. et al. Lysine glutarylation is a protein posttranslational modification regulated by SIRT5. Cell Metab 19, 605–617, https://doi.org/10.1016/j.cmet.2014.03.014 (2014). source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
The paper relies on this without support.
The HDAC1/CoREST1/LSD1 ternary complex is representative of HDAC1/2-containing co-repressor complexes for decrotonylase activity.
“For this study we utilized the CoREST complex because we are able to generate a recombinant HDAC1/CoREST1/LSD1 ternary complex23, using full-length proteins, in a 1:1:1 ratio at milligram quantities.”
The paper relies on this without support.
ES cells are a valid model for in vivo regulation of histone crotonylation.
“Collectively, our data indicate that HDAC1/2 containing complexes are critical regulators of histone crotonylation in vivo.”
The paper relies on this without support.
The changes in histone crotonylation levels upon HDAC1/2 deletion are due to loss of HDAC1/2 decrotonylase activity rather than indirect effects on other enzymes.
“Since these observations imply HDAC1/2 are active decrontonylases, we assayed the remaining deacetylase and decrotonylase activity following HDAC1/2 deletion.”
The paper relies on this without support.
The H3K18cr antibody used for native ChIP specifically detects H3K18cr.
“Chromatin was immunoprecipitated using 8 μg H3K18ac (Catalog No: 39755; Active Motif) or 8 μg H3K18cr (PTM-Biolabs 517) conjugated to 50 μL Dynabeads Protein G overnight at 4 °C.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The cited source says what the claim attributes to it.
In the citing paper
“Histone modifications are dynamically regulated by coordinated enzyme systems commonly referred to as “writers,” “erasers,” and “readers,” which respectively deposit, remove, or recognize specific epigenetic marks (Kelly et al., 2018; Brancolini et al., 2022).”
From Histone modifications and depression: epigenetic mechanisms, therapeutic targets, and translational outlook (2026) · cites this paper as Kelly et al., 2018
Citations
Cites
Systematic and integrative analysis of large gene lists using DAVID bioinformatics resources
Huang, D. W., Sherman, B. T., & Lempicki, R. A. (2009) · Nature Protocols · doi:10.1038/nprot.2008.211 · Cited by 35,890
deepTools2: a next generation web server for deep-sequencing data analysis
Ramírez, F., Ryan, D. P., Grüning, B., Bhardwaj, V., Kilpert, F., Richter, A. S., Heyne, S., Dündar, F., & Manke, T. (2016) · Nucleic Acids Research · doi:10.1093/nar/gkw257 · Cited by 8,096
A bivalent chromatin structure marks key developmental genes in embryonic stem cells
Bernstein, B. E., Mikkelsen, T. S., Xie, X., Kamal, M., Huebert, D. J., Cuff, J., Fry, B., Meissner, A., Wernig, M., Plath, K., et al. (2006) · Cell · doi:10.1016/j.cell.2006.02.041 · Cited by 5,361
Genome-wide maps of chromatin state in pluripotent and lineage-committed cells
Mikkelsen, T. S., Ku, M., Jaffe, D. B., Issac, B., Lieberman, E., Giannoukos, G., Alvarez, P., Brockman, W., Kim, T.-K., Koche, R. P., et al. (2007) · Nature · doi:10.1038/nature06008 · Cited by 4,129
Haberland, M., Montgomery, R. L., & Olson, E. N. (2008) · Nature Reviews Genetics · doi:10.1038/nrg2485 · Cited by 2,600
Sirtuins as regulators of metabolism and healthspan
Houtkooper, R. H., Pirinen, E., & Auwerx, J. (2012) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm3293 · Cited by 2,008
Tan, M., Luo, H., Lee, S., Jin, F., Yang, J. S., Montellier, E., Buchou, T., Cheng, Z., Rousseaux, S., Rajagopal, N., et al. (2011) · Cell · doi:10.1016/j.cell.2011.08.008 · Cited by 1,902
Structure and ligand of a histone acetyltransferase bromodomain
Dhalluin, C., Carlson, J. E., Zeng, L., He, C., Aggarwal, A. K., Zhou, M.-M., & Zhou, M.-M. (1999) · Nature · doi:10.1038/20974 · Cited by 1,732
Sirt5 Is a NAD-Dependent Protein Lysine Demalonylase and Desuccinylase
Du, J., Zhou, Y., Su, X., Yu, J. J., Khan, S., Jiang, H., Kim, J., Woo, J., Kim, J. H., Choi, B. H., et al. (2011) · Science · doi:10.1126/science.1207861 · Cited by 1,429
Genome-wide mapping of HATs and HDACs reveals distinct functions in active and inactive genes
Wang, Z., Zang, C., Cui, K., Schones, D. E., Barski, A., Peng, W., & Zhao, K. (2009) · Cell · doi:10.1016/j.cell.2009.06.049 · Cited by 1,344
Cited by
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The interaction among gut microbes, the intestinal barrier and short chain fatty acids
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Liu, R., Wu, J., Guo, H., Yao, W., Li, S., Lu, Y., Jia, Y., Liang, X., Tang, J., & Zhang, H. (2023) · MedComm · doi:10.1002/mco2.292 · Cited by 315
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Roles of Histone Deacetylases and Inhibitors in Anticancer Therapy
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Metadata
- Authors
- Kelly, R. D. W., Chandru, A., Watson, P. J., Song, Y., Blades, M., Robertson, N. S., Jamieson, A. G., Schwabe, J. W. R., & Cowley, S. M.
- Affiliations
- University of Leicester (GB)
- University of Cambridge (GB)
- University of Glasgow (GB)
- Corresponding author
- Cowley, S. M.
- Venue
- Scientific Reports
- Published
- 2018-10-02
- Volume
- 8
- Issue
- 1
- Pages
- 14690-14690
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC6168483
- OpenAlex
- W2892763111
- Semantic Scholar
- 5dcbd5abb94c07fb1ae9c0b7b1a6842367d603a5
- Cited by
- 138
- References
- 49
- Citations by year
- 2026: 13 · 2025: 20 · 2024: 25 · 2023: 17 · 2022: 19 · 2021: 21 · 2020: 12 · 2019: 11
- FWCI
- 3.91
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion, cc-by-sa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Figshare (submittedVersion, cc-by)
- Leicester Research Archive (University of Leicester) (submittedVersion, cc-by)
- Apollo (University of Cambridge) (submittedVersion, cc-by)
- Apollo (cc-by)
- Funders
- Engineering and Physical Sciences Research Council (EP/N034260/1)
- Wellcome Trust (100237)
- Biotechnology and Biological Sciences Research Council (BB/N002954/1, BB/P021689/1)
- Medical Research Council (MR/J009202/1)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
- Keywords
- HDAC1, HDAC2, histone crotonylation, histone acetylation, LSD1, H3K18, histone acylation, corepressor complex, epigenetic regulation, embryonic stem cells
- MeSH terms
- Cell Line, Histones, Humans, Multienzyme Complexes, Protein Processing, Post-Translational, Histone Deacetylase 1, Histone Deacetylase 2
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