>sp|Q49605|MCRA_METKA Methyl-coenzyme M reductase I subunit alpha OS=Methanopyrus kandleri GN=mcrA MSSAEEKLFMKALKEKFEESPEEKYTKFYIFGGWKQSERKKEFKEWADKIVEERGVPHYN PDIGVPLGQRKLMSYQVSGTDVFVEGDDLHFVNNAAMQQMWDDIRRTVIVGMDTAHRVLE RRLGKEVTPETINEYMETLNHALPGGAVVQEHMVEIHPGLTWDCYAKIITGDLELADEID DKFLIDIEKLFPEEQAEQLIKAIGNRTYQVCRMPTIVGHVCDGATMYRWAAMQIAMSFIC AYKIAAGEAAVSDFAFASKHAEVINMGEMLPARRARGENEPGGVPFGVLADCVQTMRKYP DDPAKVALEVIAAGAMLYDQIWLGSYMSGGVGFTQYATAVYTDNILDDYVYYGLEYVEDK YGIAEAEPSMDVVKDVATEVTLYGLEQYERYPAAMETHFGGSQRAAVCAAAAGCSTAFAT GHAQAGLNGWYLSQILHKEGHGRLGFYGYALQDQCGAANSLSVRSDEGLPLELRGPNYPN YAMNVGHLGEYAGIVQAAHAARGDAFCVHPVIKVAFADENLVFDFTEPRKEFAKGALREF EPAGERDLIVPAE