>4WD0_1|Chain A|1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase|Arthrobacter aurescens (43663) SNAMTTSAQSVLELLPAVDIVDGQAVRLLQGEAGSETSYGTPLEAALNWQNDGAEWVHMVDLDAAFGRGNNAALISDVVSQLNVKVELSGGLRDDESLERALELGVARVNLGTAALENPEWTRKAIDRFGDKIAVGLDVRGTTLAGRGWTKEGGDLWEVLARLEDAGCARYVVTDVTKDGTLQGPNVELLRQMVEKTGKPVVASGGISSLEDLRVLRELVPLGVEGAIVGKALYAGAFTLPEALDVAGRR