>sp|B2J2G1|HIS4_NOSP7 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Nostoc punctiforme (strain ATCC 29133 / PCC 73102) OX=63737 GN=hisA PE=3 SV=1 MDVIPAIDLLEGRCVRLYQGDYDRSQVFSENPVDVAKQWVDQGANRLHIVDLDGAKAGKV VNLGAIEAIAHAVSVPIEIGGGLRDRTSVQQLFNLGIQWAILGTIAVEQPQLVQELCAEF PGQIIIGIDARNGRVATRGWLETSEVLATQLAVQMQELGAAAIIYTDIHRDGTLIGPNLE ALRELAAVISIPIIASGGVSSLTDLLSLLALEPQGVTGVIVGRALYTGDILLKEALRAIG PGRIQDIPPNLGFSSFA