Recombinant human HDAC3 protein

Specifications

Form

Liquid

Additional notes

ab101663 is >70% pure as assessed by densitometry. Affinity purified.

General info

Function

Histone deacetylase that catalyzes the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4), and some other non-histone substrates (PubMed : 21030595, PubMed : 21444723, PubMed : 23911289, PubMed : 25301942, PubMed : 28167758, PubMed : 28497810, PubMed : 32404892, PubMed : 22230954). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events (PubMed : 23911289). Histone deacetylases act via the formation of large multiprotein complexes, such as N-Cor repressor complex, which activate the histone deacetylase activity (PubMed : 23911289, PubMed : 22230954). Participates in the BCL6 transcriptional repressor activity by deacetylating the H3 'Lys-27' (H3K27) on enhancer elements, antagonizing EP300 acetyltransferase activity and repressing proximal gene expression (PubMed : 23911289). Acts as a molecular chaperone for shuttling phosphorylated NR2C1 to PML bodies for sumoylation (By similarity). Contributes, together with XBP1 isoform 1, to the activation of NFE2L2-mediated HMOX1 transcription factor gene expression in a PI(3)K/mTORC2/Akt-dependent signaling pathway leading to endothelial cell (EC) survival under disturbed flow/oxidative stress (PubMed : 25190803). Regulates both the transcriptional activation and repression phases of the circadian clock in a deacetylase activity-independent manner (By similarity). During the activation phase, promotes the accumulation of ubiquitinated BMAL1 at the E-boxes and during the repression phase, blocks FBXL3-mediated CRY1/2 ubiquitination and promotes the interaction of CRY1 and BMAL1 (By similarity). The NCOR1-HDAC3 complex regulates the circadian expression of the core clock gene BMAL1 and the genes involved in lipid metabolism in the liver (By similarity). Also functions as a deacetylase for non-histone targets, such as KAT5, MEF2D, MAPK14, RARA and STAT3 (PubMed : 15653507, PubMed : 21030595, PubMed : 21444723, PubMed : 25301942, PubMed : 28167758). Serves as a corepressor of RARA, mediating its deacetylation and repression, leading to inhibition of RARE DNA element binding (PubMed : 28167758). In association with RARA, plays a role in the repression of microRNA-10a and thereby in the inflammatory response (PubMed : 28167758). In addition to protein deacetylase activity, also acts as a protein-lysine deacylase by recognizing other acyl groups : catalyzes removal of (2E)-butenoyl (crotonyl), lactoyl (lactyl), 2-hydroxyisobutanoyl (2-hydroxyisobutyryl) and isonicotinyl acyl groups from lysine residues, leading to protein decrotonylation, delactylation, de-2-hydroxyisobutyrylation and deisonicotinylation, respectively (PubMed : 28497810, PubMed : 29192674, PubMed : 34608293, PubMed : 34545082, PubMed : 35044827). Catalyzes decrotonylation of MAPRE1/EB1 (PubMed : 34608293). Mediates delactylation NBN/NBS1, thereby inhibiting DNA double-strand breaks (DSBs) via homologous recombination (HR) (PubMed : 38961290).

Sequence similarities

Belongs to the histone deacetylase family. HD type 1 subfamily.

Post-translational modifications

Sumoylated in vitro.. Deubiquitinated on 'Lys-63'-linked ubiquitin chains by USP38; leading to a decreased level of histone acetylation.

Subcellular localisation

Nucleus