Reactive species
Human;Mouse;Rat
Antibody type
Polyclonal Antibody
Protein name
Hypoxia-inducible factor 3-alpha
Immunogen
The antiserum was produced against synthesized peptide derived from human HIF-3alpha. AA range:305-354
Specificity
HIF-3α Polyclonal Antibody detects endogenous levels of HIF-3α protein.
Constitute
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Source
Polyclonal, Rabbit,IgG
Dilution rate
Western Blot: 1/500 - 1/2000. ELISA: 1/20000. Not yet tested in other applications.
Purification process
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Other name
Hypoxia-inducible factor 3-alpha; HIF-3-alpha; HIF3-alpha; Basic-helix-loop-helix-PAS protein MOP7; Class E basic helix-loop-helix protein 17; bHLHe17; HIF3-alpha-1; Inhibitory PAS domain protein; IPAS; Member of PAS protein 7; PAS domain-c
Background
hypoxia inducible factor 3 alpha subunit(HIF3A) Homo sapiens The protein encoded by this gene is the alpha-3 subunit of one of several alpha/beta-subunit heterodimeric transcription factors that regulate many adaptive responses to low oxygen tension (hypoxia). The alpha-3 subunit lacks the transactivation domain found in factors containing either the alpha-1 or alpha-2 subunits. It is thought that factors containing the alpha-3 subunit are negative regulators of hypoxia-inducible gene expression. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Mar 2011],
Function
function:Involved in adaptive response to hypoxia. Suppresses hypoxia-inducible expression of HIF1A and EPAS1. Binds to core DNA sequence 5'-TACGTG-3' within the hypoxia response element (HRE) of target gene promoters. The complex HIF3A-ARNT activates the transcription of reporter genes driven by HRE. Isoform 4 has a dominant-negative function of inactivating HIF1A-mediated transcription. Isoform 4 attenuates the binding of HIF1A to hypoxia-responsive elements (HRE), thus inhibiting HRE-driven transcription. Hypoxia induces down-regulation of isoform 4, leading to activation of HIF1A in hypoxia. Conversely, upon restoring normoxia, the expression of isoform 4 increases and thereby secure an inhibition of HIF1A activity. Isoform 4 may be a negative regulator of hypoxia-inducible gene expression in the kidney and may be involved in renal tumorigenesis. Functions as an inhibitor of angiogen
