Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Science Foundation (NSF, United States)
Primary Citation of Related Structures:   5SVA
PubMed Abstract: 
A complete, 52-protein, 2.5 million dalton, Mediator-RNA polymerase II pre-initiation complex (Med-PIC) was assembled and analyzed by cryo-electron microscopy and by chemical cross-linking and mass spectrometry. The resulting complete Med-PIC structure reveals two components of functional significance, absent from previous structures, a protein kinase complex and the Mediator-activator interaction region. It thereby shows how the kinase and its target, the C-terminal domain of the polymerase, control Med-PIC interaction and transcription.
Organizational Affiliation: 
Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA 94158, USA.
Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. Electronic address: kornberg@stanford.edu.