REPAIRtoire - a database of DNA repair pathways

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MBD4

methyl-CpG binding domain protein 4

On chromosome: 3q21-q22
Known also as: MED1;


NCBI Gene ID: 8930
NCBI Ensembl Id: ENSG00000129071
MIM Id: (from NCBI OMIM database) 603574
Species: Homo sapiens

DNA methylation is the major modification of eukaryotic genomes and plays an essential role in mammalian development. Human proteins MECP2, MBD1, MBD2, MBD3, and MBD4 comprise a family of nuclear proteins related by the presence in each of a methyl-CpG binding domain (MBD). Each of these proteins, with the exception of MBD3, is capable of binding specifically to methylated DNA. MBD4 may function to mediate the biological consequences of the methylation signal. In addition, MBD4 has protein sequence similarity to bacterial DNA repair enzymes and thus may have some function in DNA repair. Further, MBD4 gene mutations are detected in tumors with primary microsatellite-instability (MSI), a form of genomic instability associated with defective DNA mismatch repair, and MBD4 gene meets 4 of 5 criteria of a bona fide MIS target gene. [provided by RefSeq]


Gene sequence:
[Download sequence]

Proteins coded by this gene:
References:

Authors Title Journal
Hendrich B, Bird A Identification and characterization of a family of mammalian methyl-CpG binding proteins. Mol Cell Biol Nov. 1, 1998
Bellacosa A, Cicchillitti L, Schepis F, Riccio A, Yeung AT, Matsumoto Y, Golemis EA, Genuardi M, Neri G MED1, a novel human methyl-CpG-binding endonuclease, interacts with DNA mismatch repair protein MLH1. Proc Natl Acad Sci U S A March 1, 1999
Sokhansanj BA, Rodrigue GR, Fitch JP, Wilson DM 3rd A quantitative model of human DNA base excision repair. I. Mechanistic insights. Nucleic Acids Res April 15, 2002
Screaton RA, Kiessling S, Sansom OJ, Millar CB, Maddison K, Bird A, Clarke AR, Frisch SM Fas-associated death domain protein interacts with methyl-CpG binding domain protein 4: a potential link between genome surveillance and apoptosis. Proc Natl Acad Sci U S A April 1, 2003

Last modification of this entry: Oct. 6, 2010.

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