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Render Timestamp: 2024-10-09T09:54:22.345Z
Commit: f04ddd7fea9fb3592f59f61482fcb94610d25cbe
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77

HDAC4 (4A3) Mouse mAb #5392

Filter:
  • WB
  • IP

    Supporting Data

    REACTIVITY H M R Mk
    SENSITIVITY Endogenous
    MW (kDa) 140
    Source/Isotype Mouse IgG2a
    Application Key:
    • WB-Western Blotting 
    • IP-Immunoprecipitation 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 
    • R-Rat 
    • Mk-Monkey 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunoprecipitation 1:200

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    HDAC4 (4A3) Mouse mAb detects endogenous levels of total HDAC4 protein. The antibody may cross-react with HDAC5.

    Species Reactivity:

    Human, Mouse, Rat, Monkey

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a recombinant protein corresponding to the amino terminus of human HDAC4 protein. The epitope corresponds to a region surrounding Gln115 of human HDAC4.

    Background

    Acetylation of the histone tail causes chromatin to adopt an "open" conformation, allowing increased accessibility of transcription factors to DNA. The identification of histone acetyltransferases (HATs) and their large multiprotein complexes has yielded important insights into how these enzymes regulate transcription (1,2). HAT complexes interact with sequence-specific activator proteins to target specific genes. In addition to histones, HATs can acetylate nonhistone proteins, suggesting multiple roles for these enzymes (3). In contrast, histone deacetylation promotes a "closed" chromatin conformation and typically leads to repression of gene activity (4). Mammalian histone deacetylases can be divided into three classes on the basis of their similarity to various yeast deacetylases (5). Class I proteins (HDACs 1, 2, 3, and 8) are related to the yeast Rpd3-like proteins, those in class II (HDACs 4, 5, 6, 7, 9, and 10) are related to yeast Hda1-like proteins, and class III proteins are related to the yeast protein Sir2. Inhibitors of HDAC activity are now being explored as potential therapeutic cancer agents (6,7).
    Histone deacetylases (HDACs) interact with an increasing number of transcription factors, including myocyte enhancer factor 2 (MEF2), to negatively regulate gene expression. HDACs are regulated in part by shuttling between the nucleus and cytoplasm, where export to the cytoplasm facilitates gene activation by removing HDACs from their target genes (8,9). The cytoplasmic export is facilitated by 14-3-3 proteins, which bind to specific phosphoserine residues on the HDAC proteins (8,9). These phosphoserine 14-3-3 binding modules are highly conserved between HDAC proteins, allowing for their collective regulation in response to specific cell stimuli. For example, the highly conserved HDAC4 Ser246, HDAC5 Ser259 and HDAC7 Ser155 residues are all phosphorylated by CAMK and PKD kinases in response to multiple cell stimuli, including VEGF-induced angiogenesis in endothelial cells, B cell and T cell activation, and differentiation of myoblasts into muscle fiber (10-14).
    1. Marmorstein, R. (2001) Cell Mol Life Sci 58, 693-703.
    2. Gregory, P.D. et al. (2001) Exp Cell Res 265, 195-202.
    3. Liu, Y. et al. (2000) Mol Cell Biol 20, 5540-53.
    4. Cress, W.D. and Seto, E. (2000) J Cell Physiol 184, 1-16.
    5. Gray, S.G. and Ekström, T.J. (2001) Exp Cell Res 262, 75-83.
    6. Thiagalingam, S. et al. (2003) Ann. N.Y. Acad. Sci. 983, 84-100.
    7. Vigushin, D.M. and Coombes, R.C. (2004) Curr Cancer Drug Targets 4, 205-18.
    8. Grozinger, C.M. and Schreiber, S.L. (2000) Proc Natl Acad Sci USA 97, 7835-40.
    9. Wang, A.H. et al. (2000) Mol Cell Biol 20, 6904-12.
    10. Ha, C.H. et al. (2008) J Biol Chem 283, 14590-9.
    11. Wang, S. et al. (2008) Proc Natl Acad Sci USA 105, 7738-43.
    12. Matthews, S.A. et al. (2006) Mol Cell Biol 26, 1569-77.
    13. Parra, M. et al. (2005) J Biol Chem 280, 13762-70.
    14. McKinsey, T.A. et al. (2000) Nature 408, 106-11.
    For Research Use Only. Not For Use In Diagnostic Procedures.
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