>sp|Q7V581|PUR5_PROMM Phosphoribosylformylglycinamidine cyclo-ligase OS=Prochlorococcus marinus GN=purM MDYKTAGVDVQAGRAFIERIRSSVEATHRPEVIGGLGGFGGLMRLPAGLNKPLLVAGTDG VGTKLELAQQHQAHYGVGLDLVGMCVNDVITSGAEPLFFLDYIATGALSPEAMAQVVEGI AEGCRRSGCALLGGETAEMPGFYDPGCYDLAGFCVAVVEEDEMIDGRKIKPGDQIIGVAS SGVHSNGFSLVRKVLALTEANKNTLFGCDNKPLIETLLTPTTLYGQLVKNLLEAKVPLHG MAHITGGGLPENLPRCCPKDLVTVIDPSSWTRPELFQWLQDAGQIPEHDLWHTFNLGVGF CLVVAEEVVSDVLQVCNEQALQAWPIGQVETASPSTGERLRGLPS