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Information on EC 2.1.1.248 - methylamine-corrinoid protein Co-methyltransferase

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IUBMB Comments
The enzyme, which catalyses the transfer of a methyl group from methylamine to a methylamine-specific corrinoid protein (MtmC), is involved in methanogenesis from methylamine. The enzyme contains the unusual amino acid pyrrolysine . Methylation of the corrinoid protein requires the central cobalt to be in the Co(I) state. During methylation the cobalt is oxidized to the Co(III) state. The methylated corrinoid protein is substrate for EC 2.1.1.247, methylated methylamine-specific corrinoid protein:coenzyme M methyltransferase.
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The expected taxonomic range for this enzyme is: Methanosarcina
Reaction Schemes
+
a [Co(I) methylamine-specific corrinoid protein]
=
a [methyl-Co(III) methylamine-specific corrinoid protein]
+
Synonyms
monomethylamine methyltransferase, mtmb1, mmamt, mma methyltransferase, monomethylamine:mmcp methyltransferase, mma:mmcp methyltransferase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
methylamine + a [Co(I) methylamine-specific corrinoid protein] = a [methyl-Co(III) methylamine-specific corrinoid protein] + NH3
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