Tags: Protein.
Hypoxia-inducible factor 3 alpha is a protein that in humans is encoded by the HIF3A gene.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.