>sp|A0PXP7|HIS4_CLONN 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Clostridium novyi GN=hisA MIILPAIDLRMGKCVRLYKGDFNKTEIVAESAVDTALMFKECGAEYIHIVDLDGALKGKG INLDIVCELIKKVDIPIEFGGGIRDIETIDYLIDIGVSRIILGTAALNNEKLVREAIKRY DDKVAVGIDAKNGYVAVEGWLNLSNVNYIDFAKKMESIGVKNIIFTDISRDGTLNGPNFD ALLKLKENINCNITASGGIKDVNDIKKLKEFNIYGAIVGKAIYSNNIDLKEAIKLSEK