>6z80_Q mol:protein length:87 GTP cyclohydrolase 1 feedback regulatory proteinGSHMPYLLISTQIRMEVGPTMVGDEQSDPELMQHLGASKRRALGNNFYEYYVDDPPRIVLDKLERRGFRVLSMTGVGQTLVWCLHKE