>sp|A9BAN4|HIS4_PROM4 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Prochlorococcus marinus GN=hisA MELIPAIDLLEGNCVRLVQGNYNKVTKFNSDPVSQALRWEDMGASRLHIVDLDAARQGFS SNDDVIKQIAKSLSIPIQIGGGIRTSKRAKELLDYGIDRVIIGTAALEDPRLVEDLASAF PKKIVLGIDAKEGKVATRGWIEQSDVRTEDLIKQFSNAKIAAIISTDISTDGTLEGPNLK SLTSVAKVSNAPVIASGGIGSLADLISLTTLEKAGVTGVIVGRALYDNKFSLEEAIKVLL NIDLQDQPFNAKNIA