>sp|Q1RFT3|XGPT_ECOUT Xanthine-guanine phosphoribosyltransferase OS=Escherichia coli GN=gpt MSEKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCI SSYDHDNQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFITIFAKPAGRP LVDDYVVDIPQNTWIEQPWDMGVVFVPPISGR