>AF_AFA3PIG2F1_1|Chain A|Xanthine-guanine phosphoribosyltransferase|Rhodobacter sphaeroides (strain ATCC 17029 / ATH 2.4.9) (349101) MKERLPHEKGFHVSWDQIHRDSRALAWRLDGQGPDNGSWRAVVGITRGGLVPAMIVSRELDIRTVDTISVKSYNWQEQQAPTVIKAPQAELMGDGHGILIVDDLVDSGKTLELVRTLYPRAHFATVYAKPSGRPMVDTYITEVSQDTWIFFPWDMALQYVEPYRGRD