The Enzyme Database

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EC 2.1.1.384     
Accepted name: [methyl-Co(III) methoxylated-aromatic-compound-specific corrinoid protein]—tetrahydromethanopterin methyltransferase
Reaction: a [methyl-Co(III) methoxylated-aromatic-compound-specific corrinoid protein] + tetrahydromethanopterin = N5-methyltetrahydromethanopterin + a [Co(I) methoxylated-aromatic-compound-specific corrinoid protein]
Other name(s): mtoA (gene name)
Systematic name: [methylated methoxylated-aromatic-compound-specific corrinoid protein]:tetrahydromethanopterin methyltransferase
Comments: The enzyme has been characterized from several archaeal species. In the methanogenic archaeon Methermicoccus shengliensis the enzyme participates in methanogenesis from methoxylated aromatic compounds, while in the non-methanogenic Archaeoglobus fulgidus it participates in methoxydotrophic growth. The enzyme catalyses the transfer of a methyl group bound to the cobalt cofactor of a dedicated corrinoid protein (MtoC) to tetrahydromethanopterin or tetrahydrosarcinapterin. cf. EC 2.1.1.385, [methyl-Co(III) methoxylated-aromatic-compound-specific corrinoid protein]—tetrahydrofolate methyltransferase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Kurth, J.M., Nobu, M.K., Tamaki, H., de Jonge, N., Berger, S., Jetten, M.SM., Yamamoto, K., Mayumi, D., Sakata, S., Bai, L., Cheng, L., Nielsen, J.L., Kamagata, Y., Wagner, T. and Welte, C.U. Methanogenic archaea use a bacteria-like methyltransferase system to demethoxylate aromatic compounds. ISME J. 15 (2021) 3549–3565. [DOI] [PMID: 34145392]
2.  Welte, C.U., de Graaf, R., Dalcin Martins, P., Jansen, R.S., Jetten, M.SM. and Kurth, J.M. A novel methoxydotrophic metabolism discovered in the hyperthermophilic archaeon Archaeoglobus fulgidus. Environ. Microbiol. 23 (2021) 4017–4033. [DOI] [PMID: 33913565]
[EC 2.1.1.384 created 2022]
 
 


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