Structure of the corrinoid:coenzyme M methyltransferase MtaA from Methanosarcina mazei

The structures of a substrate-free but Zn²⁺-bound state of MtaA and its complex with substrate (coenzyme M) and Zn²⁺ are reported. MtaA is one of the three subunits of the methanol–coenzyme M–methyltransferase complex of M. mazei responsible for the conversion of methanol to methylated coenzyme M.