>sp|B8GUD3|CYSG_THISH Siroheme synthase OS=Thioalkalivibrio sulfidiphilus GN=cysG MDFFPVFMRLKDRACLVVGGGPVALRKVSLLRKAHARVTVVSPALCPELAALKARDAIEH LPRGFEDADVDARVLVIAATDDEDLNRHVSELCTERCIPVNVVDQPELCGFITPSMIDRS PIQVAVSTGGSSPVLARLLRSRIESFIPAAYGRLAALVEGYRLKVKARIPDTELRRRFWE RLLEGPVTELFMSGREDAARETLEKALETGLDTRDAGGEVFLVGAGPGDPDLLTFRALRL MQLADVVVYDNLVSPAIIELVRRDAEMIYAGKKRNLHTLPQEEINQLLVRLAKEGKRVLR LKGGDPFIFGRGGEEIDTLMQEGIPFQVVPGITAAAGCASFSGIPLTHRDYAQAVVFATG HLRDGSIDLNWKMLAQPRQTVVFYMGLLGLPIICRELMAHGVSPDMPMALVEQGTTQNQR VIVGTLASMPDLVKDYDVQPPTLIIVGEVVKLHERLKWFQPGTDHTVKSLFSSQGQVVEA RSSTEGAEA