Cited by 444Genetic Syndromes and ImprintingGenomics and Chromatin DynamicsEpigenetics and DNA Methylation

Functional association of CTCF with the insulator upstream of the H19 gene is parent of origin-specific and methylation-sensitive

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Kanduri, Chandrasekhar, Pant, Vinod, Loukinov, Dmitri, Pugacheva, Elena, Qi, Chen-Feng, Wolffe, Alan, Ohlsson, Rolf, Lobanenkov, Victor V.·2000·Current Biology

Abstract

In mammals, a subset of genes inherit gametic marks that establish parent of origin-dependent expression patterns in the soma ([1] and references therein). The currently most extensively studied examples of this phenomenon, termed genomic imprinting, are the physically linked Igf2 (insulin-like growth factor II) and H19 genes, which are expressed mono-allelically from opposite parental alleles [1] [2]. The repressed status of the maternal Igf2 allele is due to cis elements that prevent the H19 enhancers [3] from accessing the Igf2 promoters on the maternal chromosome [4] [5]. A differentially methylated domain (DMD) in the 5' flank of H19 is maintained paternally methylated and maternally unmethylated [6] [7]. We show here by gel-shift and chromatin immunopurification analyses that binding of the highly conserved multivalent factor CTCF ([8] [9] and references therein) to the H19 DMD is methylation-sensitive and parent of origin-dependent. Selectively mutating CTCF-contacting nucleotides, which were identified by methylation interference within the extended binding sites initially revealed by nuclease footprinting, abrogated the H19 DMD enhancer-blocking property. These observations suggest that molecular mechanisms of genomic imprinting may use an unusual ability of CTCF to interact with a diverse spectrum of variant target sites, some of which include CpGs that are responsible for methylation-sensitive CTCF binding in vitro and in vivo.

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Crossref · 10.1016/s0960-9822(00)00597-2

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  • CTCF binding has an insulating capacity, effectively blocking signals between enhancers and their target genes in the β-globin and H19/Igf2 loci.

    “More unusually, it emerged that CTCF binding has an insulating capacity, effectively blocking signals between enhancers and their target genes in the β-globin and H19/Igf2 loci [323–326].”
  • DNA methylation abrogates CTCF DNA binding.

    “DNA methylation abrogates CTCF DNA binding (Bell and Felsenfeld, 2000; Hark et al., 2000; Kanduri et al., 2000; Szabo et al., 2000).”

    From Insulated Neighborhoods: Structural and Functional Units of Mammalian Gene Control (2016) · cites this paper as Kanduri et al., 2000

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Authors
Kanduri, C., Pant, V., Loukinov, D., Pugacheva, E., Qi, C.-F., Wolffe, A., Ohlsson, R., & Lobanenkov, V. V.
Affiliations
  • Uppsala University (SE)
  • National Institutes of Health (US)
  • Sangamo BioSciences (United States) (US)
Corresponding author
  • Ohlsson, Rolf
  • Lobanenkov, Victor V.
Venue
Current Biology
Publisher
Elsevier BV
Published
2000-07
Volume
10
Issue
14
Pages
853-856
ISSN
0960-9822 (ISSN-L)
OpenAlex
W2074906225
Cited by
444
References
12
Citations by year
2026: 2 · 2025: 4 · 2024: 6 · 2023: 9 · 2022: 5 · 2021: 7 · 2020: 9 · 2019: 5 · 2018: 9 · 2017: 11 · 2016: 9 · 2015: 13 · 2014: 13 · 2013: 16 · 2012: 22
FWCI
17.36
Type
journal article
Language
en
Open access
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • 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
CTCF, genomic imprinting, H19, differentially methylated regions, insulin-like growth factor II, DNA methylation, enhancer blocking, chromatin insulators, CpG sites, monoallelic expression, CTCF binding sites
MeSH terms
CCCTC-Binding Factor, Animals, Base Sequence, Binding Sites, DNA, DNA-Binding Proteins, Enhancer Elements, Genetic, Female, Insulin-Like Growth Factor II, Male, Molecular Sequence Data, Muscle Proteins, Protein Binding, Repressor Proteins, Transcription Factors, Zinc Fingers, DNA Methylation, RNA, Untranslated, Mice, RNA, Long Noncoding

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