>sp|Q9YBJ4|PYRG_AERPE CTP synthase OS=Aeropyrum pernix GN=pyrG MSPRKYVIVTGGVLSSVGKGLTTASLALLLSSRGYSVEAIKIDPYINVDAGTMNPYMHGE VFVTEDGGETDLDIGHYERFLGKNLSRKHNITTGQIYFSVISKERSGDYLGQTVQVIPHI TDEIKSRIKEVGDVSGADVVIVEIGGTVGDIEGLPFLEAARQMRLEEGFDNTFFIHVALS PYLPTTGEQKTKPVQHSIQELRRIGIQPDAVVVRSHQPLEQEGLRKIALYATLPMENVIN SYDIENIYRLPLLLEKQGLARLVERRLFGRETRPDLSRWEEFVALYEKASRRVKVAMVGK YTKLRDSYISIVEALKHASAYEGVRPELLWVESTDIERGVVDVDRVFEEADGAIVLPGFG VRGVEGKIEAIRRFREGKKPMLGICFGMQLSVVEYARNVLGLKEAHTTEVNPETPHPVVD LLPEQRGIDKLGGTMRLGARPVRIVEGTILWSLYGRELASERHRHRYEVNPTYVDRLVEA GLVVSAWSQEGYVEAVELRPRDHPFFLATQFHPEFKSRPLNPAPVFKGFVTAVARLRG