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methanogenesis marker radical SAM protein Members of this protein family, to date, are found in a completed prokaryotic genome if and only if the species is one of the archaeal methanogens. It is a radical SAM enzyme by homology. The exact function is unknown, but likely is linked to methanogenesis. In most genomes, the member of this family is encoded by a gene next to, and divergently transcribed from, the methyl coenzyme M reductase operon. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",