>3k4g_G mol:protein length:86 DNA-directed RNA polymerase subunit alphaMEKPEFDPILLRPVDDLELTVRSANCLKAEAIHYIGDLVQRTEVELLKTPNLGKKSLTEIKDVLASRGLSLGMRLENWPPASIADE