Product: HDAC3 Antibody
Catalog: AF6016
Description: Rabbit polyclonal antibody to HDAC3
Application: WB IHC IF/ICC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Zebrafish, Horse, Sheep, Rabbit, Dog, Chicken, Xenopus
Mol.Wt.: 48kDa; 49kD(Calculated).
Uniprot: O15379
RRID: AB_2834950

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 100ul $280 In stock
 200ul $350 In stock

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Product Info

WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Pig(100%), Zebrafish(89%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Chicken(100%), Xenopus(100%)
HDAC3 Antibody detects endogenous levels of total HDAC3.
Cite Format: Affinity Biosciences Cat# AF6016, RRID:AB_2834950.
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.


HD3; HDAC 3; HDAC3; HDAC3_HUMAN; Histone deacetylase 3; RPD3 2; RPD3; RPD3-2; SMAP45;



Widely expressed.

Histones play a critical role in transcriptional regulation, cell cycle progression, and developmental events. Histone acetylation/deacetylation alters chromosome structure and affects transcription factor access to DNA.



Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - O15379 As Substrate

Site PTM Type Enzyme
K3 Ubiquitination
K25 Ubiquitination
K44 Ubiquitination
Y66 Phosphorylation
S74 Phosphorylation
K121 Ubiquitination
Y325 Phosphorylation
Y328 Phosphorylation
Y331 Phosphorylation
Y404 Phosphorylation
Y414 Phosphorylation
S424 Phosphorylation Q5S007 (LRRK2) , Q9BXM7 (PINK1) , P68400 (CSNK2A1)

Research Backgrounds


Responsible for 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. 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. 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. Probably participates in the regulation of transcription through its binding to the zinc-finger transcription factor YY1; increases YY1 repression activity. Required to repress transcription of the POU1F1 transcription factor. Acts as a molecular chaperone for shuttling phosphorylated NR2C1 to PML bodies for sumoylation. 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. 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 ARNTL/BMAL1 at the E-boxes and during the repression phase, blocks FBXL3-mediated CRY1/2 ubiquitination and promotes the interaction of CRY1 and ARNTL/BMAL1 (By similarity). The NCOR1-HDAC3 complex regulates the circadian expression of the core clock gene ARTNL/BMAL1 and the genes involved in lipid metabolism in the liver (By similarity). Serves as a corepressor of RARA, causing its deacetylation and inhibition of RARE DNA element binding. In association with RARA, plays a role in the repression of microRNA-10a and thereby in the inflammatory response.


Sumoylated in vitro.

Subcellular Location:

Nucleus. Cytoplasm. Cytoplasm>Cytosol.
Note: Colocalizes with XBP1 and AKT1 in the cytoplasm (PubMed:25190803). Predominantly expressed in the nucleus in the presence of CCAR2.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Widely expressed.

Subunit Structure:

Interacts with HDAC7 and HDAC9. Forms a heterologous complex at least with YY1. Interacts with DAXX, HDAC10 and DACH1. Found in a complex with NCOR1 and NCOR2. Component of the N-Cor repressor complex, at least composed of NCOR1, NCOR2, HDAC3, TBL1X, TBL1R, CORO2A and GPS2. Interacts with BCOR, MJD2A/JHDM3A, NRIP1, PRDM6 and SRY. Interacts with BTBD14B. Interacts with GLIS2. Interacts (via the DNA-binding domain) with NR2C1; the interaction recruits phosphorylated NR2C1 to PML bodies for sumoylation. Component of the Notch corepressor complex. Interacts with CBFA2T3 and NKAP. Interacts with APEX1; the interaction is not dependent on the acetylated status of APEX1. Interacts with and deacetylates MAPK14. Interacts with ZMYND15. Interacts with SMRT/NCOR2 and BCL6 on DNA enhancer elements. Interacts with INSM1. Interacts with XBP1 isoform 1; the interaction occurs in endothelial cell (EC) under disturbed flow. Interacts (via C-terminus) with CCAR2 (via N-terminus). Interacts with and deacetylates MEF2D. Interacts with BEND3. Interacts with NKAPL (By similarity). Interacts with DHX36; this interaction occurs in a RNA-dependent manner. Interacts weakly with CRY1; this interaction is enhanced in the presence of FBXL3 (By similarity). Interacts with FBXL3 and ARNTL/BMAL1 (By similarity). Interacts with NCOR1 (By similarity). Interacts with RARA.


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

Research Fields

· Human Diseases > Substance dependence > Alcoholism.

· Human Diseases > Infectious diseases: Viral > Human papillomavirus infection.

· Human Diseases > Cancers: Overview > Viral carcinogenesis.

· Organismal Systems > Endocrine system > Thyroid hormone signaling pathway.   (View pathway)


1). A novel lncRNA SNHG29 regulates EP300- related histone acetylation modification and inhibits FLT3-ITD AML development. Leukemia, 2023 (PubMed: 37157016) [IF=11.4]

2). Fecal microbiota transplantation improves metabolism and gut microbiome composition in db/db mice. ACTA PHARMACOLOGICA SINICA, 2020 (PubMed: 31937933) [IF=8.2]

Application: WB    Species: Mouse    Sample: Colonic tissue

Fig. 6 HDAC3 protein expression in mouse colonic samples. Total protein was extracted from mouse colon specimens at different time points (a: 0 weeks, b: 8 weeks), and the levels of HDAC3 were analyzed by using Western blot. The signal intensity was quantified by using densitometry and is expressed relative to β-actin expression (c). Values are the mean ± S.D. *P < 0.05 compared with db/m + PBS mice. #P < 0.05 compared with db/db + PBS mice.

3). Chitotriosidase attenuates brain inflammation via HDAC3/NF-κB pathway in D-galactose and aluminum-induced rat model with cognitive impairments. NEUROSCIENCE RESEARCH, 2021 (PubMed: 34111442) [IF=2.9]

Application: WB    Species: rat    Sample: brain

Fig. 2. |Levels of HDAC3 in four experimental groups. (a) The mRNA levels of HDAC3 in the brain tissue were detected via qRT-PCR. (b) The protein levels of HDAC3 in the brain tissue of rats were determined by western blotting. GAPDH was used as a loading control. * p < 0.05.

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