Envelope glycoprotein

UniProtKB accession:  P03385

Grouped By:  Matching UniProtKB accession

UniProtKB description:  The surface protein (SU) attaches the virus to the host cell by binding to its receptor. Interaction with HECT ubiquitin ligases activates a thiol in a CXXC motif of the C-terminal domain, where the other Cys residue participates in the formation of the intersubunit disulfide. The activated thiol will attack the disulfide and cause its isomerization into a disulfide isomer within the motif. This leads to SU displacement and TM refolding, and is thought to activate its fusogenic potential by unmasking its fusion peptide. Fusion occurs at the host cell plasma membrane.