Download MendeleyCrystal structure of RNA polymerase II from Komagataella pastoris
Ehara, H., Umehara, T., Sekine, S.I., Yokoyama, S.(2017) Biochem Biophys Res Commun 487: 230-235
- PubMed: 28412353
- DOI: https://doi.org/10.1016/j.bbrc.2017.04.039
- Primary Citation of Related Structures:
5X4Z, 5X50, 5X51 - PubMed Abstract:
RNA polymerase II (Pol II) is a 12-subunit protein complex that conducts the transcription of mRNA and some small RNAs. In this work, the crystal structure of Pol II from the methylotropic yeast Komagataella pastoris (Pichia pastoris) was determined. While the structure is highly homologous to that of Pol II from the budding yeast Saccharomyces cerevisiae, the stalk and clamp modules of the K. pastoris Pol II displayed large inward rotations, closing the central cleft to a greater extent than in the known S. cerevisiae Pol II structures. The conformational differences reflect the inherent flexibilities of the stalk and the clamp, as additional low-resolution structures of K. pastoris Pol II in different crystal forms revealed diverse stalk and clamp orientations. Comparisons with other eukaryotic/archaeal RNA polymerase structures in the Protein Data Bank revealed the distributions of the stalk and clamp orientations. The conformational plasticity should be essential for transcriptional functions and binding various regulatory factors.
Organizational Affiliation:
Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan; RIKEN Center for Life Science Technologies, Division of Structural and Synthetic Biology, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan.
