>3rgr_A mol:protein length:131 Steroid Delta-isomeraseMNLPTAQEVQGLMARYIELVDVGDIEAIVQMYADDATVEDPFGQPPIHGREQIAAFYRQGLGGGKVRACLTGPVRASHNGCGAMPFRVEMVWNGQPCALDVIDVMRFDEHGRIQTAQAYWSEVNLSVREPQ