Cited by 389Genomics and Chromatin DynamicsFungal and yeast genetics researchEpigenetics and DNA Methylation

Highly expressed loci are vulnerable to misleading ChIP localization of multiple unrelated proteins

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Teytelman, Leonid, Thurtle, Deborah M., Rine, Jasper, van Oudenaarden, Alexander·2013·Proceedings of the National Academy of Sciences

Abstract

Chromatin immunoprecipitation (ChIP) is the gold-standard technique for localizing nuclear proteins in the genome. We used ChIP, in combination with deep sequencing (Seq), to study the genome-wide distribution of the Silent information regulator (Sir) complex in Saccharomyces cerevisiae. We analyzed ChIP-Seq peaks of the Sir2, Sir3, and Sir4 silencing proteins and discovered 238 unexpected euchromatic loci that exhibited enrichment of all three. Surprisingly, published ChIP-Seq datasets for the Ste12 transcription factor and the centromeric Cse4 protein indicated that these proteins were also enriched in the same euchromatic regions with the high Sir protein levels. The 238 loci, termed "hyper-ChIPable", were in highly expressed regions with strong polymerase II and polymerase III enrichment signals, and the correlation between transcription level and ChIP enrichment was not limited to these 238 loci but extended genome-wide. The apparent enrichment of various proteins at hyper-ChIPable loci was not a consequence of artifacts associated with deep sequencing methods, as confirmed by ChIP-quantitative PCR. The localization of unrelated proteins, including the entire silencing complex, to the most highly transcribed genes was highly suggestive of a technical issue with the immunoprecipitations. ChIP-Seq on chromatin immunoprecipitated with a nuclear-localized GFP reproduced the above enrichment in an expression-dependent manner: induction of the GAL genes resulted in an increased ChIP signal of the GFP protein at these loci, with presumably no biological relevance. Whereas ChIP is a broadly valuable technique, some published conclusions based upon ChIP procedures may merit reevaluation in light of these findings.

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Crossref · 10.1073/pnas.1316064110

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  • It remains unknown what proportion of candidate enhancers identified solely by biochemical marks are technical false positives or have enhancer-like features but no meaningful impact on expression of cis-encoded genes.

    “Although unquestionably useful, it remains unknown what proportion of candidate enhancers identified solely by biochemical marks are technical false positives130-132 or a product of having enhancer-like biochemical features but no meaningful impact on the expression of cis encoded genes133.”
  • ChIP is not equally adept at measuring all interactions.

    “While ChIP is not equally adept at measuring all interactions (Baranello et al., 2016; Teytelman et al., 2013), recent methods have overcome some of these limitations (Janssens et al., 2018; Skene and Henikoff, 2017; Skene et al., 2018; Zhu et al., 2019).”

    From Unraveling Hematopoiesis through the Lens of Genomics (2020) · cites this paper as Teytelman et al., 2013

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Authors
Teytelman, L., Thurtle, D. M., Rine, J., & van Oudenaarden, A.
Affiliations
  • Departments of aPhysics and
  • Department of Molecular and Cell Biology and California Institute for Quantitative Biosciences, University of California, Berkeley, CA 94720; and
  • QB3 (US)
Venue
Proceedings of the National Academy of Sciences
Published
2013-10-30
Volume
110
Issue
46
Pages
18602-18607
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2080466240
Cited by
389
References
29
Citations by year
2026: 6 · 2025: 19 · 2024: 21 · 2023: 21 · 2022: 29 · 2021: 18 · 2020: 47 · 2019: 42 · 2018: 35 · 2017: 29 · 2016: 36 · 2015: 42 · 2014: 40 · 2013: 4
FWCI
18.20
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
  • KNAW research portal (Royal Academy of Art and Sciences (KNAW)) (submittedVersion)
Funders
  • National Cancer Institute (U54CA143874, DP1CA174420)
  • National Institute of General Medical Sciences (GM31105, R01GM068957, R01GM031105, R37GM031105, T32GM007232)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
SIR complex, Sir2, Sir3, Sir4, heterochromatin silencing, transcriptional regulation, Ste12, Cse4, nuclear protein localization, Saccharomyces cerevisiae
MeSH terms
Polymerase Chain Reaction, Artifacts, DNA Primers, Silent Information Regulator Proteins, Saccharomyces cerevisiae, Chromatin Immunoprecipitation, Genetic Loci, High-Throughput Nucleotide Sequencing

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