>7rxk_A mol:protein length:131 Steroid Delta-isomeraseMNLPTAQEVQGLMARYIELVDVGDIEAIVQMFADDATVEDPFGQPPIHGREQIAAFFRQGLGGGKVRACLTGPVRASHNGCGAMPFRVEMVWNGQPCALDVIDVMRFDEHGRIQTMQAYWSEVNLSVREPQ