>6f4y_B mol:protein length:125 Steroid Delta-isomeraseLPTAQEVQGLMARYIELVDVGDIEAIVQMYADDATVEDPFGQPPIHGREQIAAFYRQGLGGGKVRACLTGPVRASHNGCGAMPFRVEMVWNGQPCALDVISVMRFDEHGRIQTMQAYWSEVNLSV