GO:0004839

ubiquitin activating enzyme activity

Details: 
Catalysis of the reaction: a protein L-lysine + a ubiquitin + ATP = a protein-N-ubiquityl-lysine + AMP + diphosphate. This reaction is the activation of the C-terminal carboxyl group of ubiquitin by the formation of a high-energy thiolester bond in an ATP-dependent manner.
GO Category: 
MF
Uba3_RUB
(UBA2) Ube1
(UBA1) Ube1
Ube1