Homo sapiens Protein: MBD1
Summary
InnateDB Protein IDBP-232857.5
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol MBD1
Protein Name methyl-CpG binding domain protein 1
Synonyms CXXC3; PCM1; RFT;
Species Homo sapiens
Ensembl Protein ENSP00000381508
InnateDB Gene IDBG-3349 (MBD1)
Protein Structure
UniProt Annotation
Function Transcriptional repressor that binds CpG islands in promoters where the DNA is methylated at position 5 of cytosine within CpG dinucleotides. Binding is abolished by the presence of 7-mG that is produced by DNA damage by methylmethanesulfonate (MMS). Acts as transcriptional repressor and plays a role in gene silencing by recruiting AFT7IP, which in turn recruits factors such as the histone methyltransferase SETDB1. Probably forms a complex with SETDB1 and ATF7IP that represses transcription and couples DNA methylation and histone 'Lys-9' trimethylation. Isoform 1 and isoform 2 can also repress transcription from unmethylated promoters. {ECO:0000269PubMed:10454587, ECO:0000269PubMed:10648624, ECO:0000269PubMed:12665582, ECO:0000269PubMed:12697822, ECO:0000269PubMed:12711603, ECO:0000269PubMed:14555760, ECO:0000269PubMed:14610093, ECO:0000269PubMed:15327775, ECO:0000269PubMed:9207790, ECO:0000269PubMed:9774669}.
Subcellular Localization Nucleus {ECO:0000250}. Nucleus matrix {ECO:0000250}. Nucleus speckle. Chromosome. Note=Colocalizes with the Ten-1 ICD form of TENM1 in foci associated with the nuclear matrix (By similarity). Nuclear, in a punctate pattern. Associated with euchromatic regions of the chromosomes, with pericentromeric regions on chromosome 1 and with telomeric regions from several chromosomes. {ECO:0000250}.
Disease Associations
Tissue Specificity Widely expressed. {ECO:0000269PubMed:9207790}.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 50 experimentally validated interaction(s) in this database.
They are also associated with 1 interaction(s) predicted by orthology.
Experimentally validated
Total 50 [view]
Protein-Protein 44 [view]
Protein-DNA 6 [view]
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 1 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0003677 DNA binding
GO:0008270 zinc ion binding
Biological Process
Cellular Component
GO:0005634 nucleus
Protein Structure and Domains
PDB ID
InterPro IPR001739 Methyl-CpG DNA binding
IPR002857 Zinc finger, CXXC-type
IPR016177 DNA-binding domain
PFAM PF01429
PF02008
PRINTS
PIRSF
SMART SM00391
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt
PhosphoSite PhosphoSite-Q9UIS9
TrEMBL
UniProt Splice Variant
Entrez Gene 4152
UniGene Hs.732970
RefSeq NP_001191069
HUGO HGNC:6916
OMIM 156535
CCDS
HPRD 01133
IMGT
EMBL
GenPept