Render Target: STATIC
Render Timestamp: 2024-12-23T10:50:55.005Z
Commit: f2d32940205a64f990b886d724ccee2c9935daff
XML generation date: 2024-08-15 10:49:08.379
Product last modified at: 2024-12-12T13:00:43.341Z
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77
R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.

Hydroxy-HIF-1α (Pro564) (D43B5) XP® Rabbit mAb #3434

Filter:
  • WB
  • IP
  • IF

    Supporting Data

    REACTIVITY H Mk
    SENSITIVITY Endogenous
    MW (kDa) 120
    Source/Isotype Rabbit IgG
    Application Key:
    • WB-Western Blotting 
    • IP-Immunoprecipitation 
    • IF-Immunofluorescence 
    Species Cross-Reactivity Key:
    • H-Human 
    • Mk-Monkey 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunoprecipitation 1:50
    Immunofluorescence (Immunocytochemistry) 1:3200 - 1:6400

    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

    Hydroxy-HIF-1α (Pro564) (D43B5) XP® Rabbit mAb detects endogenous levels of HIF-1α only when hydroxylated at Pro564. This antibody may cross react with other overexpressed proline hydroxylated proteins.

    Species Reactivity:

    Human, Monkey

    The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

    Species predicted to react based on 100% sequence homology:

    Mouse, Rat, Chicken, Xenopus, Zebrafish, Pig

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a synthetic hydroxypeptide corresponding to residues surrounding Pro564 of human HIF-1α.

    Background

    Hypoxia-inducible factor 1 (HIF1) is a heterodimeric transcription factor that plays a critical role in the cellular response to hypoxia (1). The HIF1 complex consists of two subunits, HIF-1α and HIF-1β, which are basic helix-loop-helix proteins of the PAS (Per, ARNT, Sim) family (2). HIF1 regulates the transcription of a broad range of genes that facilitate responses to the hypoxic environment, including genes regulating angiogenesis, erythropoiesis, cell cycle, metabolism, and apoptosis. The widely expressed HIF-1α is typically degraded rapidly in normoxic cells by the ubiquitin/proteasomal pathway. Under normoxic conditions, HIF-1α is proline hydroxylated leading to a conformational change that promotes binding to the von Hippel-Lindau protein (VHL) E3 ligase complex; ubiquitination and proteasomal degradation follows (3,4). Both hypoxic conditions and chemical hydroxylase inhibitors (such as desferrioxamine and cobalt) inhibit HIF-1α degradation and lead to its stabilization. In addition, HIF-1α can be induced in an oxygen-independent manner by various cytokines through the PI3K-AKT-mTOR pathway (5-7).

    HIF-1β is also known as AhR nuclear translocator (ARNT) due to its ability to partner with the aryl hydrocarbon receptor (AhR) to form a heterodimeric transcription factor complex (8). Together with AhR, HIF-1β plays an important role in xenobiotics metabolism (8). In addition, a chromosomal translocation leading to a TEL-ARNT fusion protein is associated with acute myeloblastic leukemia (9). Studies also found that ARNT/HIF-1β expression levels decrease significantly in pancreatic islets from patients with type 2 diabetes, suggesting that HIF-1β plays an important role in pancreatic β-cell function (10).~Two critical prolines in HIF-1α (Pro564 and Pro402) can be hydroxylated by proline hydroxylase under normoxia conditions. Hydroxylation of HIF-1α leads to its binding to VHL and ubiquitin mediated degradation (3,11,12).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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