Abstract
The von Hippel-Lindau tumor suppressor protein (pVHL) is the substrate-recognition module of an E3 ubiquitin ligase that targets the alpha subunits of hypoxia-inducible factor (HIF) for degradation in the presence of oxygen. Recognition of HIF by pVHL is linked to enzymatic hydroxylation of conserved prolyl residues in the HIF alpha subunits by members of the EGLN family. Dysregulation of HIF-target genes such as vascular endothelial growth factor and transforming growth factor alpha has been implicated in the pathogenesis of renal cell carcinomas and of hemangioblastomas, both of which frequently lack pVHL function.
MeSH terms
-
Animals
-
DNA-Binding Proteins / physiology
-
Humans
-
Hydroxylation
-
Hypoxia-Inducible Factor 1
-
Hypoxia-Inducible Factor 1, alpha Subunit
-
Ligases / drug effects
-
Ligases / physiology*
-
Neoplasms / metabolism*
-
Nuclear Proteins / physiology
-
Oxygen / metabolism*
-
Transcription Factors*
-
Tumor Suppressor Proteins*
-
Ubiquitin-Protein Ligases*
-
Von Hippel-Lindau Tumor Suppressor Protein
Substances
-
DNA-Binding Proteins
-
HIF1A protein, human
-
Hypoxia-Inducible Factor 1
-
Hypoxia-Inducible Factor 1, alpha Subunit
-
Nuclear Proteins
-
Transcription Factors
-
Tumor Suppressor Proteins
-
Ubiquitin-Protein Ligases
-
Von Hippel-Lindau Tumor Suppressor Protein
-
Ligases
-
VHL protein, human
-
Oxygen