Noncovalent dimerization of ubiquitin |
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| Authors: | Liu Zhu Zhang Wei-Ping Xing Qiong Ren Xuefeng Liu Maili Tang Chun |
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| Institution: | State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China. |
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| Abstract: | Another kind of dynamics: Ubiquitin noncovalently dimerizes with a dissociation constant of approximately 5?mM. The two subunits adopt an array of relative orientations, utilizing an interface also for binding to other proteins (see picture). Quaternary fluctuation among members of the dimer ensemble constitutes a different kind of dynamics that complements the tertiary dynamics of each ubiquitin subunit. |
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| Keywords: | dimerization NMR spectroscopy paramagnetic relaxation enhancement protein–protein interactions ubiquitin |
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