Recombinant Rabbit monoclonal primary
Recombinant HIF-2 alpha Monoclonal Antibody (ET7107-32)
SiHa, rat lung tissue, human breast cancer tissue, human placenta tissue, mouse colon tissue, HUVEC.
Store at +4C after thawing. Aliquot store at -20C or -80C. Avoid repeated freeze / thaw cycles.
1*TBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Protein A purified.
Endothelial PAS domain-containing protein 1
EPAS-1, bHLHe73, HLF, HIF-2-alpha, HIF2-alpha, EPAS1, BHLHE73, HIF2A, MOP2, PASD2
Expressed in most tissues, with highest levels in placenta, lung and heart. Selectively expressed in endothelial cells.
In normoxia, is probably hydroxylated on Pro-405 and Pro-531 by EGLN1/PHD1, EGLN2/PHD2 and/or EGLN3/PHD3. The hydroxylated prolines promote interaction with VHL, initiating rapid ubiquitination and subsequent proteasomal degradation. Under hypoxia, proline hydroxylation is impaired and ubiquitination is attenuated, resulting in stabilization (By similarity).; In normoxia, is hydroxylated on Asn-847 by HIF1AN thus probably abrogating interaction with CREBBP and EP300 and preventing transcriptional activation.; Phosphorylated on multiple sites in the CTAD.; The iron and 2-oxoglutarate dependent 3-hydroxylation of asparagine is (S) stereospecific within HIF CTAD domains.
Nucleus. Nucleus speckle. Note=Colocalizes with HIF3A in the nucleus and speckles.
Transcription factor involved in the induction of oxygen regulated genes. Heterodimerizes with ARNT; heterodimer binds to core DNA sequence 5'-TACGTG-3' within the hypoxia response element (HRE) of target gene promoters (By similarity). Regulates the vascular endothelial growth factor (VEGF) expression and seems to be implicated in the development of blood vessels and the tubular system of lung. May also play a role in the formation of the endothelium that gives rise to the blood brain barrier. Potent activator of the Tie-2 tyrosine kinase expression. Activation requires recruitment of transcriptional coactivators such as CREBBP and probably EP300. Interaction with redox regulatory protein APEX seems to activate CTAD (By similarity).