>sp|Q8YVU4|ACSF2_NOSS1 Magnesium-protoporphyrin IX monomethyl ester [oxidative] cyclase 2 OS=Nostoc sp. GN=acsF2 MVNSLTTPEPQTLKPGVKAPVQETLLTPRFYTTDFDAVANLDISANETEIRAIVEELRAD YNRHHFVRDEEFKQSWDHITGEKRRAFIDFLERSCTSEFSGFLLFKELSRRIKSRNPLLA EAFEFMARDEARHAGFLNKSMSDLNLSLDLNYLTKNRTYTFFPPEWVIYTVYLSEKIGYW RYILVHQHMQEHPEYQFYPLFRKFESWCQDENRHGDFFKALLRSQPQLWKNWKARLWVRF FLLTVFVTHTMTVFERASFYESIGIHPRKYNNRVIQETNNTSARAFPLILNTNHPLFFWR LEQCWENNFKLAAIKNSKLPNFVKFFQRIPPATAIFWNMLRLFLIKPIDTEATRGTVL