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ENZYME

ENZYME entry: EC 2.1.1.106

Accepted Name
tryptophan 2-C-methyltransferase
Reaction catalysed
L-tryptophan + S-adenosyl-L-methionine <=> 2-methyl-L-tryptophan + H(+) + S-adenosyl-L-homocysteine
Comment(s)
  • The enzyme, characterized from the bacterium Streptomyces laurentii, is involved in thiostrepton biosynthesis.
  • It is a radical SAM enzyme that contains a [4Fe-4S] center and a cobalamin cofactor.
  • The enzyme first transfers the methyl group from SAM to the bound cobalamin, followed by transfer from methylcobalamin to L-tryptophan, resulting in retention of the original methyl group configuration.
  • The second transfer is likely to involve a CH3 radical species formed from methylcobalamin by the concerted action of a partially ligated radical SAM [4Fe-4S](2+/1+) center.
Cross-references
BRENDA2.1.1.106
EC2PDB2.1.1.106
ExplorEnz2.1.1.106
PRIAM enzyme-specific profiles2.1.1.106
KEGG Ligand Database for Enzyme Nomenclature2.1.1.106
IUBMB Enzyme Nomenclature2.1.1.106
IntEnz2.1.1.106
MEDLINEFind literature relating to 2.1.1.106
MetaCyc2.1.1.106
Rhea expert-curated reactions2.1.1.106
UniProtKB/Swiss-Prot
C0JRZ9, TSRM_STRLU

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