>sp|Q7UPS1|MCH_RHOBA Methenyltetrahydromethanopterin cyclohydrolase OS=Rhodopirellula baltica GN=mch MKSATPDDLPRTGVEPDLSRSASECFESLWNGAIGMRSLPLTIAGARVLDAGVTCSGSLE AGLGLARLCLGDLANVRYVPATADDLVGLSVTIQTDHPVLSCLGGQYAGWPVSVADYFAM ASGPMRCLRGKEAMLEQLHLSRQATDDDFAVGVLESDTLPGEDVIEAMADECGVDPSRLC LAVAPSTSIAGSAQVVSRSVETALHKLHALEFDVTRVVSAHGDAPLPPPAKKGDTIGGIG RTNDAMLYGARVTLWVDAEDDAIDSVASKVPSQSSDDHGRPFAEIFKQYEYDFYQVDPML FSPAVVTIHSLQSGRTWRHGQISIDVMRKSFGL