>1u3f_B mol:protein length:189 5,10-Methenyltetrahydrofolate SynthetaseMGSSHHHHHHDYDIPTTENLYFQGHMDKNALRKQILQKRMALSTIEKSHLDQKINQKLVAFLTPKPCIKTIALYEPIKNEVTFVDFFFEFLKINQIRAVYPKVISDTEIIFIDQETNTFEPNQIDCFLIPLVGFNKDNYRLGFGKGYYDRYLMQLTRQQPKIGIAYSFQKGDFLADPWDVQLDLIINDE