Cited by 35Genomics and Chromatin DynamicsEpigenetics and DNA MethylationChromatin Remodeling and Cancer

Epigenetics of Muscle- and Brain-Specific Expression of KLHL Family Genes

Open access
Ehrlich, Kenneth C., Baribault, Carl, Ehrlich, Melanie·2020·International Journal of Molecular Sciences

Published version of a preprint

Abstract

KLHL and the related KBTBD genes encode components of the Cullin-E3 ubiquitin ligase complex and typically target tissue-specific proteins for degradation, thereby affecting differentiation, homeostasis, metabolism, cell signaling, and the oxidative stress response. Despite their importance in cell function and disease (especially, KLHL40, KLHL41, KBTBD13, KEAP1, and ENC1), previous studies of epigenetic factors that affect transcription were predominantly limited to promoter DNA methylation. Using diverse tissue and cell culture whole-genome profiles, we examined 17 KLHL or KBTBD genes preferentially expressed in skeletal muscle or brain to identify tissue-specific enhancer and promoter chromatin, open chromatin (DNaseI hypersensitivity), and DNA hypomethylation. Sixteen of the 17 genes displayed muscle- or brain-specific enhancer chromatin in their gene bodies, and most exhibited specific intergenic enhancer chromatin as well. Seven genes were embedded in super-enhancers (particularly strong, tissue-specific clusters of enhancers). The enhancer chromatin regions typically displayed foci of DNA hypomethylation at peaks of open chromatin. In addition, we found evidence for an intragenic enhancer in one gene upregulating expression of its neighboring gene, specifically for KLHL40/HHATL and KLHL38/FBXO32 gene pairs. Many KLHL/KBTBD genes had tissue-specific promoter chromatin at their 5′ ends, but surprisingly, two (KBTBD11 and KLHL31) had constitutively unmethylated promoter chromatin in their 3′ exons that overlaps a retrotransposed KLHL gene. Our findings demonstrate the importance of expanding epigenetic analyses beyond the 5′ ends of genes in studies of normal and abnormal gene regulation.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3390/ijms21218394

Cites

76 of 76 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • KLHL40 and KLHL41 are clearest examples of ligases with tissue-specific expression in skeletal muscle.

    “Among the clearest examples of ligases with tissue-specific expression are kelch-like family member 40 (KLHL40) and KLHL41 in skeletal muscle145”

    From PROTAC targeted protein degraders: the past is prologue (2022) · cites this paper as [145]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

2 of the 78 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Ehrlich, K. C., Baribault, C., & Ehrlich, M.
Affiliations
Tulane University (US)
Corresponding author
Ehrlich, Melanie
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2020-11-09
Volume
21
Issue
21
Pages
8394
ISSN
1422-0067 (ISSN-L)
OpenAlex
W3093026272
Cited by
35
References
78
Citations by year
2026: 5 · 2025: 9 · 2024: 5 · 2023: 6 · 2022: 6 · 2021: 3 · 2020: 1
FWCI
1.30
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • Preprints.org (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health (NS04885)
  • Tulane Cancer Center (none)
Topics
  • 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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
Keywords
tissue-specific gene expression, skeletal muscle, brain, super-enhancers, DNA hypomethylation, open chromatin, DNase I hypersensitivity, promoter chromatin, intragenic enhancers, retrotransposition, gene expression regulation
MeSH terms
Adult, Aged, Brain, Cells, Cultured, Child, Preschool, Chromatin, Enhancer Elements, Genetic, Exons, Female, Gene Expression Regulation, Humans, Male, Middle Aged, Muscle Proteins, Promoter Regions, Genetic, Transcription, Genetic, Up-Regulation, Muscle, Skeletal, DNA Methylation, Epigenesis, Genetic, Adaptor Proteins, Signal Transducing, Epigenomics

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review