期刊
TRENDS IN BIOCHEMICAL SCIENCES
卷 38, 期 10, 页码 515-530出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tibs.2013.08.003
关键词
signal transduction; protein-protein recognition; bacterial phosphotransferase system; NMR spectroscopy; hybrid methods in structure determination; residual dipolar couplings; solution X-ray scattering; sparsely populated states; encounter complexes
资金
- Intramural Program of the NIH, NIDDK
- Intramural AIDS Targeted Antiviral Program of the Office of the Director of the NIH
The bacterial phosphotransferase system (PTS) couples phosphoryl transfer, via a series of bimolecular protein-protein interactions, to sugar transport across the membrane. The multitude of complexes in the PTS provides a paradigm for studying protein interactions, and for understanding how the same binding surface can specifically recognize a diverse array of targets. Fifteen years of work aimed at solving the solution structures of all soluble protein-protein complexes of the PTS has served as a test bed for developing NMR and integrated hybrid approaches to study larger complexes in solution and to probe transient, spectroscopically invisible states, including encounter complexes. We review these approaches, highlighting the problems that can be tackled with these methods, and summarize the current findings on protein interactions.
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