EC 2.1.1.252 - Tetramethylammonium—corrinoid protein Co-methyltransferase

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IntEnz Enzyme Nomenclature
EC 2.1.1.252

Names

Accepted name:
tetramethylammonium—corrinoid protein Co-methyltransferase
Other names:
mtqB (gene name)
tetramethylammonium methyltransferase
Systematic name:
tetramethylammonium:5-hydroxybenzimidazolylcobamide Co-methyltransferase

Reaction

Comments:

The enzyme, which catalyses the transfer of a methyl group from tetramethylammonium to a tetramethylammonium-specific corrinoid protein (MtqC), is involved in methanogenesis from tetramethylammonium. 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 2.1.1.253, methylated tetramethylammonium-specific corrinoid protein:coenzyme M methyltransferase.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB

References

  1. Asakawa, S., Sauer, K., Liesack, W., Thauer, R. K.
    Tetramethylammonium:coenzyme M methyltransferase system from methanococcoides sp.
    Arch. Microbiol. 170 : 220-226 (1998). [PMID: 9732435]

[EC 2.1.1.252 created 2012]