>4ay3_A mol:protein length:181 N5-CARBOXYAMINOIMIDAZOLE RIBONUCLEOTIDE MUTASEMGSSHHHHHHSSGLVPRGSHMKSLVGVIMGSTSDWETMKYACDILDELNIPYEKKVVSAHRTPDYMFEYAETARERGLKVIIAGAGGAAHLPGMVAAKTNLPVIGVPVQSKALNGLDSLLSIVQMPGGVPVATVAIGKAGSTNAGLLAAQILGSFHDDIHDALELRREAIEKDVREGSELV