mouse monoclonal IgG; Histone Deacetylase 1 (HDAC1) Antibody (H-11) is an IgG1 κ mouse monoclonal HDAC1 antibody that detects HDAC1 of mouse, rat and human origin by WB, IP, IF, FCM and ELISA. Histone Deacetylase 1 (HDAC1) Antibody (H-11) is available as the non-conjugated anti-HDAC1 antibody form, as well as multiple conjugated forms of anti-HDAC1 antibody, including agarose, HRP, PE, FITC and multiple Alexa Fluor® conjugates. In the intact cell, DNA closely associates with histones and other nuclear proteins to form chromatin. The remodeling of chromatin is believed to be a critical component of transcriptional regulation and a major source of this remodeling is brought about by the acetylation of nucleosomal histones. Acetylation of lysine residues in the amino-terminal tail domain of histone results in an allosteric change in the nucleosomal conformation and an increased accessibility to transcription factors by DNA. Conversely, the deacetylation of histones is associated with transcriptional silencing. Several mammalian proteins have been identified as nuclear histone acetylases, including GCN5, PCAF (for p300/CBP-associated factor), p300/CBP and the TFIID subunit TAF II p250. Mammalian HDAC1 (also designated HD1), HDAC2 (also designated mammalian RPD3) and HDAC3, all of which are related to the yeast transcriptional regulator Rpd3p, have been identified as histone deacetylases.