Hypoxia-inducible factor, alpha subunit (IPR021537)
Short name: HIF_alpha_subunit
Overlapping homologous superfamilies
- Hypoxia-inducible factor, alpha subunit (IPR021537)
- Hypoxia-inducible factor-1 alpha (IPR001321)
Hypoxia-inducible factors (HIFs) are transcription factors that respond to changes in available oxygen in the cellular environment. Specifically, they respond to decreases in oxygen, mediating the effects of hypoxia [PMID: 18410568]. HIFs are heterodimers, composed of an alpha and a beta subunit. At least 3 different alpha subunits are known to exist, termed HIF-1, -2 and -3 alpha. Beta subunits, meanwhile, are constitutively-expressed aryl hydrocarbon receptor nuclear translocators (ARNTs).
In addition to their role in hypoxia, HIFs have been shown to be involved in a range of processes, including angiogenesis, metal transport, mitochondrial function and cell growth [PMID: 19756382].
This entry represents HIF alpha subunits.
- PF11413 (HIF-1)