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hypoxia-inducible factor 2 alpha; endothelial PAS domain protein 1; EPAS-1; member of PAS protein 2; MOP2; HIF-2 alpha; HIF-1 alpha-like factor (HIF2A,HLF)
Function:
- binds to hypoxia response element (HRE) of target gene promoters
- regulates vascular endothelial growth factor (VEGF) expression
- implicated in the development of blood vessels
- 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
Expression:
- expressed in most tissues
- highest levels in placenta, lung & heart
- selectively expressed in endothelial cells
Pharmacology:
- target of belzutifan (Welireg) for treatment of cancers associated with von Hippel-Lindau disease
General
basic helix loop helix (bHLH) family transcription factor
phosphoprotein
Properties
SIZE: MW = 96 kD
entity length = 870 aa
COMPARTMENT: cell nucleus
CELL: endothelial cell
MOTIF: DNA-binding motif
SITE: 15-27
helix-loop-helix
NAME: helix-loop-helix
SITE: 28-68
FOR-BINDING-VIA: helix-loop-helix
PAS domain {84-154}
PAS domain {230-300}
PAC {304-347}
serine residue {474-480} (7)
NTAD {496-542}
CTAD {830-870}
MOTIF: Thr phosphorylation site {T840}
Database Correlations
OMIM 603349
UniProt Q99814
PFAM correlations
References
UniProt :accession Q16665
Component-of
hypoxia inducible factor 2