5-methyltetrahydrosarcinapterin:corrinoid/iron-sulfur protein Co-methyltransferase (, cdhD (gene), cdhE (gene)) is an enzyme with systematic name 5-methyltetrahydrosarcinapterin:corrinoid/iron-sulfur protein methyltransferase. This enzyme catalyses the following chemical reaction:
[methyl-Co(III) corrinoid Fe-S protein] + tetrahydrosarcinapterin [Co(I) corrinoid Fe-S protein] + 5-methyltetrahydrosarcinapterin
This enzyme catalyses the transfer of a methyl group from the cobamide cofactor of a corrinoid/Fe-S protein to the N5 group of tetrahydrosarcinapterin.
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