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probable H4MPT-linked C1 transfer pathway protein This protein family was identified, by the method of partial phylogenetic profiling, as related to the use of tetrahydromethanopterin (H4MPT) as a C-1 carrier. Characteristic markers of the H4MPT-linked C1 transfer pathway include formylmethanofuran dehydrogenase subunits, methenyltetrahydromethanopterin cyclohydrolase, etc. Tetrahydromethanopterin, a tetrahydrofolate analog, occurs in methanogenic archaea, bacterial methanotrophs, planctomycetes, and a few other lineages. [Central intermediary metabolism, One-carbon metabolism]
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Jiyao W et al.(2023). "The conserved domain database in 2023.",