2.1.1.86 0.135 - 5-Methyl-5,6,7,8-tetrahydromethanopterin at 37°C in 50 mM MOPS-KOH (pH 7.0) 734072 2.1.1.86 0.277 - coenzyme M at 37°C in 50 mM MOPS-KOH (pH 7.0) 734072 2.1.1.86 0.88 - 5,6,7,8-tetrahydromethanopterin - 639489 2.1.1.86 3.7 - (2-methylthio)ethanesulfonate - 639489