Methyl-CpG-binding domain protein 2

NameMethyl-CpG-binding domain protein 2
Synonyms
  • Demethylase
  • DMTase
  • Methyl-CpG-binding protein MBD2
Gene NameMBD2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0001866|Methyl-CpG-binding domain protein 2
MRAHPGGGRCCPEQEEGESAAGGSGAGGDSAIEQGGQGSALAPSPVSGVRREGARGGGRG
RGRWKQAGRGGGVCGRGRGRGRGRGRGRGRGRGRGRPPSGGSGLGGDGGGCGGGGSGGGG
APRREPVPFPSGSAGPGPRGPRATESGKRMDCPALPPGWKKEEVIRKSGLSAGKSDVYYF
SPSGKKFRSKPQLARYLGNTVDLSSFDFRTGKMMPSKLQKNKQRLRNDPLNQNKGKPDLN
TTLPIRQTASIFKQPVTKVTNHPSNKVKSDPQRMNEQPRQLFWEKRLQGLSASDVTEQII
KTMELPKGLQGVGPGSNDETLLSAVASALHTSSAPITGQVSAAVEKNPAVWLNTSQPLCK
AFIVTDEDIRKQEERVQQVRKKLEEALMADILSRAADTEEMDIEMDSGDEA
Number of residues411
Molecular Weight43254.3
Theoretical pI10.76
GO Classification
Functions
  • mRNA binding
  • methyl-CpG binding
  • chromatin binding
  • protein domain specific binding
  • C2H2 zinc finger domain binding
  • siRNA binding
  • satellite DNA binding
Processes
  • transcription, DNA-templated
  • negative regulation of transcription, DNA-templated
  • positive regulation of Wnt signaling pathway
  • negative regulation of gene expression, epigenetic
  • regulation of gene expression, epigenetic
  • cellular protein complex assembly
  • ATP-dependent chromatin remodeling
  • gene expression
  • methylation-dependent chromatin silencing
  • regulation of cell proliferation
  • negative regulation of transcription from RNA polymerase II promoter
  • maternal behavior
Components
  • nuclear chromatin
  • cytoplasm
  • protein complex
  • nucleus
  • histone deacetylase complex
  • heterochromatin
  • nucleoplasm
General FunctionSirna binding
Specific FunctionBinds CpG islands in promoters where the DNA is methylated at position 5 of cytosine within CpG dinucleotides. Binds hemimethylated DNA as well. Recruits histone deacetylases and DNA methyltransferases. Acts as transcriptional repressor and plays a role in gene silencing. Functions as a scaffold protein, targeting GATAD2A and GATAD2B to chromatin to promote repression. May enhance the activation of some unmethylated cAMP-responsive promoters.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein ID3800793
UniProtKB IDQ9UBB5
UniProtKB Entry NameMBD2_HUMAN
Cellular LocationNucleus
Gene sequence
>lcl|BSEQ0019040|Methyl-CpG-binding domain protein 2 (MBD2)
ATGCGCGCGCACCCGGGGGGAGGCCGCTGCTGCCCGGAGCAGGAGGAGGGGGAGAGTGCG
GCGGGCGGCAGCGGCGCTGGCGGCGACTCCGCCATAGAGCAGGGGGGCCAGGGCAGCGCG
CTCGCCCCGTCCCCGGTGAGCGGCGTGCGCAGGGAAGGCGCTCGGGGCGGCGGCCGTGGC
CGGGGGCGGTGGAAGCAGGCGGGCCGGGGCGGCGGCGTCTGTGGCCGTGGCCGGGGCCGG
GGCCGTGGCCGGGGACGGGGACGGGGCCGGGGCCGGGGCCGCGGCCGTCCCCCGAGTGGC
GGCAGCGGCCTTGGCGGCGACGGCGGCGGCTGCGGCGGCGGCGGCAGCGGTGGCGGCGGC
GCCCCCCGGCGGGAGCCGGTCCCTTTCCCGTCGGGGAGCGCGGGGCCGGGGCCCAGGGGA
CCCCGGGCCACGGAGAGCGGGAAGAGGATGGATTGCCCGGCCCTCCCCCCCGGATGGAAG
AAGGAGGAAGTGATCCGAAAATCTGGGCTAAGTGCTGGCAAGAGCGATGTCTACTACTTC
AGTCCAAGTGGTAAGAAGTTCAGAAGCAAGCCTCAGTTGGCAAGGTACCTGGGAAATACT
GTTGATCTCAGCAGTTTTGACTTCAGAACTGGAAAGATGATGCCTAGTAAATTACAGAAG
AACAAACAGAGACTGCGAAACGATCCTCTCAATCAAAATAAGGGTAAACCAGACTTGAAT
ACAACATTGCCAATTAGACAAACAGCATCAATTTTCAAACAACCGGTAACCAAAGTCACA
AATCATCCTAGTAATAAAGTGAAATCAGACCCACAACGAATGAATGAACAGCCACGTCAG
CTTTTCTGGGAGAAGAGGCTACAAGGACTTAGTGCATCAGATGTAACAGAACAAATTATA
AAAACCATGGAACTACCCAAAGGTCTTCAAGGAGTTGGTCCAGGTAGCAATGATGAGACC
CTTTTATCTGCTGTTGCCAGTGCTTTGCACACAAGCTCTGCGCCAATCACAGGGCAAGTC
TCCGCTGCTGTGGAAAAGAACCCTGCTGTTTGGCTTAACACATCTCAACCCCTCTGCAAA
GCTTTTATTGTCACAGATGAAGACATCAGGAAACAGGAAGAGCGAGTACAGCAAGTACGC
AAGAAATTGGAAGAAGCACTGATGGCAGACATCTTGTCGCGAGCTGCTGATACAGAAGAG
ATGGATATTGAAATGGACAGTGGAGATGAAGCCTAA
GenBank Gene IDAF072242
GeneCard IDNot Available
GenAtlas IDMBD2
HGNC IDHGNC:6917
Chromosome Location18
Locus18q21
References
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  5. Ng HH, Zhang Y, Hendrich B, Johnson CA, Turner BM, Erdjument-Bromage H, Tempst P, Reinberg D, Bird A: MBD2 is a transcriptional repressor belonging to the MeCP1 histone deacetylase complex. Nat Genet. 1999 Sep;23(1):58-61. 10471499
  6. Tatematsu KI, Yamazaki T, Ishikawa F: MBD2-MBD3 complex binds to hemi-methylated DNA and forms a complex containing DNMT1 at the replication foci in late S phase. Genes Cells. 2000 Aug;5(8):677-88. 10947852
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