MBD3 Antibody – Goat Polyclonal

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). However, unlike the other family members, MBD3 is not capable of binding to methylated DNA. The predicted MBD3 protein shares 71% and 94% identity with MBD2 (isoform 1) and mouse Mbd3. MBD3 is a subunit of the NuRD, a multisubunit complex containing nucleosome remodeling and histone deacetylase activities. MBD3 mediates the association of metastasis-associated protein 2 (MTA2) with the core histone deacetylase complex. [provided by RefSeq]

MBD3: methyl-CpG binding (MBD) proteins appear to bind differentially methylated domains (DMDs) of DNA, to recruit repression complexes, and to silence the locus. The methyl CpG binding domain of human MBD3 may not directly bind mCpG but does interact with the NuRD/Mi2 components HDAC1 and MTA2. Plays a role in histone deacetylation and nucleosome remodeling. Increased levels have been reported in lung cancer and glioblastomas and may be a therapeutic target.

Protein type: Transcription, coactivator/corepressor; Gene silencing

Chromosomal Location of Human Ortholog: 19p13.3

Cellular Component: nucleoplasm; heterochromatin; protein complex; cytoplasm; nuclear chromatin; NuRD complex

Molecular Function: protein binding; nucleosomal DNA binding; DNA binding; methyl-CpG binding

Biological Process: tissue development; establishment and/or maintenance of chromatin architecture; transcription, DNA-dependent; methylation-dependent chromatin silencing; in utero embryonic development; ATP-dependent chromatin remodeling; negative regulation of transcription from RNA polymerase II promoter; histone acetylation