>sp|B8GJY2|HIS4_METPE 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Methanosphaerula palustris GN=hisA MKVFPAVDILGGRCVQLVQGRRESATDFGDPLSCATQWLEEGATALHVINLDGAFGKAQA NAALIRDLVDVTGVEVQLGGGIRSIADATAWLETGVDRIIIGTLATEHPEVLGTLASEYG GARIMAGVDARDGQIAVEGWQQTRGNFCTWATRFEEQGAGSLLYTNVDIEGLQQGVRLDP VKELIRMVSIPVVVAGGVSSPADLQGLHQAGVAGAVLGSALYSGKITLEEALKAIQ