>4grd_C mol:protein length:173 Phosphoribosylaminoimidazole carboxylase catalytic subunitMSEIQTAHTHSAPLVGVLMGSSSDWDVMKHAVAILQEFGVPYEAKVVSAHRMPDEMFDYAEKARERGLRAIIAGAGGAAHLPGMLAAKTTVPVLGVPVASKYLKGVDSLHSIVQMPKGVPVATFAIGEAGAANAALFAVSILSGNSVDYANRLAAFRVRQNEAAHAMVLPPLE