>sp|A6UWA5|HIS4_META3 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Methanococcus aeolicus GN=hisA MIVIPAVDIKNKKCVQLIQGNPDKKHIELDNPLEVAEKWIKCGAEMIHLVDLDSAIYGTD TNKETIKKIIESVPVPVEVGGGVRTVEDALNLIDLGAERVILGTSAVKNPEIITELLEKG INSEKIMVALDAKDGKVVIKGWMEKTEYTPIEIGKILEEKGAGSILFTNVDVEGLLDGID IEPVKKLVDELNIPIIASGGITTYDDLLKLKEIGVDGVVVGSAIYKEMMDLKKAIKIVKG E