HIF-1α (D5F3M) Mouse mAb #79233
- WB
- IP
- IF
- F
Supporting Data
| REACTIVITY | H Mk |
| SENSITIVITY | Endogenous |
| MW (kDa) | 120 |
| Source/Isotype | Mouse IgG1 |
Application Key:
- WB-Western Blotting
- IP-Immunoprecipitation
- IF-Immunofluorescence
- F-Flow Cytometry
Species Cross-Reactivity Key:
- H-Human
- Mk-Monkey
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:50 |
| Immunofluorescence (Immunocytochemistry) | 1:800 |
| Flow Cytometry (Fixed/Permeabilized) | 1:1600 |
Storage
Protocol
Specificity / Sensitivity
HIF-1α (D5F3M) Mouse mAb recognizes endogenous levels of total HIF-1α protein.
Species Reactivity:
Human, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the carboxy terminus of human HIF-1α protein. The epitope corresponds to a region surrounding Gln730 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).
Limited Uses
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