>sp|A0RZ77|HIS4_CENSY 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Cenarchaeum symbiosum GN=hisA MKVIPAIDLMDGQVVRLRRGKAKDKTVYSDDPVKVALTWEKDGADMLHIVDLDATLGRGN NIDMIRNITDAVSIPVEAAGGLRSIDLVAGALEGADRVVLGTLAFRDRDALREILESYGS KKIVISVDHVKGKIMVDGWRENTGINLVDAMQGFVGAGFTEFLLTDVDRDGMMQGPETDT LGKVCRMSDSHVIASGGITVPGDVKSVRDAGAWGVILGKALYEGKVSVKGAISC