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CDCA7 is a hemimethylated DNA adaptor for the nucleosome remodeler HELLS
Open accessPreprint — published as 10.1126/sciadv.adp5753 · Paper page
Abstract
Mutations of the SNF2 family ATPase HELLS and its activator CDCA7 cause immunodeficiency-centromeric instability-facial anomalies (ICF) syndrome, characterized by hypomethylation at heterochromatin. The unique zinc-finger domain, zf-4CXXC_R1, of CDCA7 is widely conserved across eukaryotes but is absent from species that lack HELLS and DNA methyltransferases, implying its specialized relation with methylated DNA. Here we demonstrate that zf-4CXXC_R1 acts as a hemimethylated DNA sensor. The zf-4CXXC_R1 domain of CDCA7 selectively binds to DNA with a hemimethylated CpG, but not unmethylated or fully methylated CpG, and ICF disease mutations eliminated this binding. CDCA7 and HELLS interact via their N-terminal alpha helices, through which HELLS is recruited to hemimethylated DNA. While placement of a hemimethylated CpG within the nucleosome core particle can hinder its recognition by CDCA7, cryo-EM structure analysis of the CDCA7-nucleosome complex suggests that zf-4CXXC_R1 recognizes a hemimethylated CpG in the major groove at linker DNA. Our study provides insights into how the CDCA7-HELLS nucleosome remodeling complex uniquely assists maintenance DNA methylation.
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Highly accurate protein structure prediction with AlphaFold
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Metadata
- Authors
- Wassing, I. E., Nishiyama, A., Hiruta, M., Jia, Q., Shikimachi, R., Kikuchi, A., Sugimura, K., Hong, X., Chiba, Y., Peng, J., Jenness, C., Nakanishi, M., Zhao, L., Arita, K., & Funabiki, H.
- Affiliations
- Rockefeller University (US)
- Institute of Medical Science, The University of Tokyo (JP)
- Yokohama City University (JP)
- Corresponding author
- Nishiyama, Atsuya
- Arita, Kyohei
- Funabiki, Hironori
- ORCID
- Venue
- Science Advances
- Publisher
- openRxiv
- Published
- 2023-12-19
- Volume
- 10
- Issue
- 34
- Pages
- eadp5753-eadp5753
- ISSN
- 2375-2548 (ISSN-L)
- PMC
- PMC11343034
- OpenAlex
- W4401834598
- Cited by
- 31
- References
- 1
- Citations by year
- 2026: 9 · 2025: 18 · 2024: 4
- FWCI
- 4.20
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- Locations
- Science Advances (publishedVersion, cc-by)
- bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- PubMed Central (submittedVersion, cc-by-nc-nd)
- Funders
- Robertson Foundation
- Ministry of Education, Culture, Sports, Science and Technology (JP19H05740)
- National Institutes of Health
- Japan Society for the Promotion of Science (24K02001, JP19H05741, 24K01967, 24K21950, JP19H05740)
- RIKEN
- National Institute of General Medical Sciences (R35GM132111, R35GM133780)
- RIKEN Center for Biosystems Dynamics Research
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
- Keywords
- CDCA7, HELLS, zinc finger, DNA methylation maintenance, nucleosome remodeling, UHRF1, DNMT1, heterochromatin, immunodeficiency, centromeric instability
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