- trimethyllysine dioxygenase activity
Catalysis of the reaction: 2-oxoglutarate + N(6),N(6),N(6)-trimethyl-L-lysine + O2 = 3-hydroxy-N(6),N(6),N(6)-trimethyl-L-lysine + CO2 + succinate.
- choline binding
Binding to choline, the amine 2-hydroxy-N,N,N-trimethylethanaminium.