>sp|Q0A812|CYSG_ALKEH Siroheme synthase OS=Alkalilimnicola ehrlichii GN=cysG METLPVFMKLRDRRCLVVGGGRRAERKARLLLAAGAELTVLAEAPLPTLAALTEAHGCRM VRRPLTARDLDGVSLVISAADEATDRRAHMLARARNIPINVVDRPDLCSFTLPATVDRGP VQIAVSTGGTSPVLARMLRNRLEADIPSAYGRLARLAERYRRPVREVLPEAWQRQRFWEE VLSGEVAERVFAGQDDAAREGLEEAIGRATRELQTRRGEVYLVGAGPGDPDLLTLRALRL MQQADAVVYDRLVNPAIMAKVNQDAERIDVGKRCGHHPVPQHAINDKLVTLARQGYRVLR LKGGDPFVFGRGGEELQTLVDAGVPFQVVPGITAATGCAAYSGIPLTHRDYAHSCAFYTG HLKNDRLDLDWSRMVQPGQTLVFYMGVASLPELSRQLCWHGLPAETPAALVEKGTTPEQR TLTATLETLPGLARQQGFQSPALVIIGEVVRLYEQINWYRPPGDETPKAAEPGELNRRRP A