>sp|A4WKJ7|GCH3_PYRAR GTP cyclohydrolase III OS=Pyrobaculum arsenaticum GN=gch3 MHKVVLISLRGYREWTESLGPRREHIIQKVQARIHGALWSSFTAVGALPHHFRYDYLIAL ANNVPRHWIDTAVAKIRRSSPVEVDYCIGMGETPLDAYRSCGEHKEGKESNAVVAHVDIV NSTDATRINGPIHTYLRALDMLRTAAGACEDVGCIAFYLGGDNMVVYLPEPKAIYALLDR VEAPVRAGVGVSPRPYTAFVKATKGLDALRAENKTGVKVVR