GO molecular function ontology term - GO:0034450 - ubiquitin-ubiquitin ligase activity
Term summary
- ID
- GO:0034450
- Name
- ubiquitin-ubiquitin ligase activity
- Ontology or CV name
- GO molecular function
- Definition
- Isoenergetic transfer of ubiquitin from one protein to an existing ubiquitin chain via the reaction X-ubiquitin + Y-ubiquitin = Y-ubiquitin-ubiquitin + X, where both the X-ubiquitin and Y-ubiquitin-ubiquitin linkages are thioester bonds between the C-terminal glycine of ubiquitin and a sulfhydryl side group of a cysteine residue.
