>tr|Q3U7P6|Q3U7P6_MOUSE GTP cyclohydrolase 1 OS=Mus musculus GN=Gch1 MEKPRGVRCTNGFSERELPRPGASPPAEKSRPPEAKGAQPADAWKAGRHRSEEENQVNLP KLAAAYSSILLSLGEDPQRQGLLKTPWRAATAMQYFTKGYQETISDVLNDAIFDEDHDEM VIVKDIDMFSMCEHHLVPFVGRVHIGYLPNKQVLGLSKLARIVEIYSRRLQVQERLTKQI AVAITEALQPAGVGVVIEATHMCMVMRGVQKMNSKTVTSTMLGVFREDPKTREEFLTLIR S