HIF3A

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

Function
The protein encoded by this gene is the alpha-3 subunit of one of several alpha/beta-subunit is_associated_with::heterodimeric is_associated_with::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. At least three transcript variants encoding three different isoforms have been found for this gene.

Clinical significance
is_associated_with::DNA methylation in the introns of HIF3A is associated with BMI an adiposity.