>sp|Q2KWB0|CYSG_BORA1 Siroheme synthase OS=Bordetella avium GN=cysG MKLFPIFSDIKGRCVLVVGGGAVATRKAQALLEAGAAVSVGAPTLTPELARLAQGQTITH LQGEFDADWLKDAWLIIAATDDRTVNTRVYEAACARRQFCNVVDDPALSSFQVPSIVDRS PLIVAISSSGLAPVLARRLRERLESLFDHSLGALAELAARYRPAIRAARADLKERRRFYD WLLDGPVAAALRRAQPQQAQEALDEALARPALSQDGRVVLVGAGPGDPGLLTLKGLRALN EADVILHDRLVSAEVLALARRDAERITVGKRLGENHNATQARIHELMVEHARAGRRVVRL KGGDAFIFGRGGEELEHLRAHGVDYEVVPGITAALACAAYAGIPLTHRDYAQSVHLVTAH CRADEEALDWDGLARGQQTLAFYMGVGQLDILSARLVAHGRPGSTPFALIENGSRPSQRV VMGRLSQLAERAREQAVASPALLIVGEVAALADRLAWFGKP