Von Hippel Lindau Tumor Suppressor (vHL)

The Von Hippel–Lindau tumor suppressor protein is encoded by the VHL gene and when inactivated is associated with Von Hippel–Lindau disease.The protein encoded by this gene is a component of the protein complex that includes elongin B, elongin C, and cullin-2, and possesses ubiquitin ligase E3 activity. This complex is involved in the ubiquitination and degradation of a hypoxia-inducible-factor (HIF), which is a transcription factor that plays a central role in the regulation of gene expression by oxygen. RNA polymerase II subunit POLR2G/RPB7 is also reported to be a target of this protein. Alternatively spliced transcript variants encoding distinct isoforms have been observed.