>sp|Q67KH9|HIS4_SYMTH 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Symbiobacterium thermophilum GN=hisA MRLDLYPAIDLKDGQVVRLRQGRMDEATVYGVDPVRIAARWAEAGARWIHVVDLDGALRG RPQNAAAVRAIVEALRQRHPGVRVQLGGGLRTLEALEAALALGVSRAIIGTSALEGDVAA RAVARFGPDRVAVSIDARGGFVAARGWVEVTRVRAVDLAVRMREVGVRTVVYTDIATDGM LTGPNFAELEMMGRTGLDVIASGGISSLEDIRRLTEIPGVAGAIIGRALYTGAVDLAEAL SLCGETRDT