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Protein: HDAC1_HUMAN
Histone deacetylase 1
SUBUNIT: Part of the core histone deacetylase (HDAC) complex composed of HDAC1, HDAC2, RBBP4 and RBBP7. The core complex associates with MTA2, MBD2, MBD3, MTA1L1, CHD3 and CHD4 to form the nucleosome remodeling and histone deacetylation (NuRD) complex, or with SIN3, SAP18 and SAP30 to form the SIN3 HDAC complex. Component of a BHC histone deacetylase complex that contains HDAC1, HDAC2, HMG20B/BRAF35, KDM1A, RCOR1/CoREST and PHF21A/BHC80. The BHC complex may also contain ZMYM2, ZNF217, ZMYM3, GSE1 and GTF2I. Associates with the 9-1-1 complex; interacts with HUS1. Found in a complex with DNMT3A and HDAC7. Interacts with BAZ2A/TIP5, BCOR, BRMS1L, DAXX, DNMT1, EP300, HCFC1, NFE4, PCAF, PHB2, MIER1, KDM4A, MINT, NRIP1, PRDM6, RERE, SETDB1, SMYD2, SUV39H1, TGIF, TGIF2, UHRF1, UHRF2 and ZNF541. Interacts with the non-histone region of H2AFY. Interacts with HDAC9. Component of a mSin3A corepressor complex that contains SIN3A, SAP130, SUDS3/SAP45, ARID4B/SAP180, HDAC1 and HDAC2. Interacts with BANP, CBFA2T3 and KDM5B. Interacts with SAP30L. Interacts with E4F1. Interacts with KFL1 and SAMSN1 (By similarity). Interacts with SV40 large T antigen. Interacts with CHFR, PRDM16 and SMAD3. Interacts with SP1; the interaction deacetylates SP1 and regulates its transcriptional activity. Interacts with SP3; the interaction deacetylates SP3 and regulates its transcriptional activity. In vitro, C(18) ceramides increase this interaction and the subsequent SP3 deacetylation and SP3- mediated repression of the TERT promoter. Interacts with RB1 and SMARCA4/BRG1. Interacts with TRAF6. Interacts with TSHZ3 (via N- terminus); the interaction is direct. Found in a trimeric complex with APBB1 and TSHZ3; the interaction between HDAC1 and APBB1 is mediated by TSHZ3. Interacts with APEX1; the interaction is not dependent on the acetylated status of APEX1. Interacts with NR4A2/NURR1 and BRMS1. Interacts with TRIM28; the interaction recruits HDAC1 to E2F1 and inhibits its acetylation.
SUBCELLULAR LOCATION: Nucleus.
TISSUE SPECIFICITY: Ubiquitous, with higher levels in heart, pancreas and testis, and lower levels in kidney and brain.
PTM: Sumoylated on Lys-444 and Lys-476; which promotes enzymatic activity. Desumoylated by SENP1.
PTM: Phosphorylation on Ser-421 and Ser-423 promotes enzymatic activity and interactions with NuRD and SIN3 complexes.
PTM: Ubiquitinated by CHFR, leading to its degradation by the proteasome (By similarity).
SIMILARITY: Belongs to the histone deacetylase family. HD type 1 subfamily.
GENE SYNONYMS: RPD3L1.
COPYRIGHT: Protein annotation is derived from the UniProt Consortium (http://www.uniprot.org/). Distributed under the Creative Commons Attribution-NoDerivs License.
Organism:
- Homo sapiens
Gene Symbol:
- HDAC1
Synonyms:
- HD1
- 3.5.1.98
Neighborhood Map:
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FUNCTION: Responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. Histone deacetylases act via the formation of large multiprotein complexes. Deacetylates SP proteins, SP1 and SP3, and regulates their function. Component of the BRG1-RB1-HDAC1 complex, which negatively regulates the CREST- mediated transcription in resting neurons. Upon calcium stimulation, HDAC1 is released from the complex and CREBBP is recruited, which facilitates transcriptional activation. Deacetylates TSHZ3 and regulates its transcriptional repressor activity. Deacetylates 'Lys-310' in RELA and thereby inhibits the transcriptional activity of NF-kappa-B. CATALYTIC ACTIVITY: Hydrolysis of an N(6)-acetyl-lysine residue of a histone to yield a deacetylated histone. more...