2.1.1.252 717162 Tetramethylammonium:coenzyme M methyltransferase system from Methanococcoides sp. Arch. Microbiol. 170 220-226 1998 Methanosarcina barkeri http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=9732435&form=6&db=m 2.1.1.252 717162 Tetramethylammonium:coenzyme M methyltransferase system from Methanococcoides sp. Arch. Microbiol. 170 220-226 1998 Methanosarcina barkeri NaT1 http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=9732435&form=6&db=m