A de novo protein binding pair by computational design and directed evolution.
A de novo protein binding pair by computational design and directed evolution.
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通过计算设计和定向进化的从头蛋白结合对。
DOI:
10.1016/j.molcel.2011.03.010
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发表时间:
2011-04-22
期刊:
影响因子:
16
通讯作者:
Baker D
中科院分区:
文献类型:
--
作者:
Karanicolas J;Corn JE;Chen I;Joachimiak LA;Dym O;Peck SH;Albeck S;Unger T;Hu W;Liu G;Delbecq S;Montelione GT;Spiegel CP;Liu DR;Baker D
The de novo design of protein-protein interfaces is a stringent test of our understanding of the principles underlying protein-protein interactions and would enable new approaches to biological and medical challenges. Here we describe a novel motif-based method to computationally design protein-protein complexes with native-like interface composition and interaction density. Using this method we designed a pair of proteins, Prb and Pdar, that heterodimerize with a Kd of 130 nM, 1,000-fold tighter than any previously designed de novo protein-protein complex. Directed evolution identified two point mutations that improve affinity to 180 pM. Crystal structures of complexes containing designed and evolved proteins reveal binding is entirely through the designed interface, making use of specific designed interactions. Surprisingly, in the evolved complex one of the partners is rotated 180 degrees relative to the design model. This work demonstrates that current understanding of protein-protein interfaces is sufficient to rationally design interfaces de novo, and underscores remaining challenges.
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影响因子:
5.6
作者:
Grigoryan, G;Keating, AE
通讯作者:
Keating, AE
DOI:
10.1073/pnas.0505425102
发表时间:
2005-10-25
影响因子:
11.1
作者:
Guharoy, M;Chakrabarti, P
通讯作者:
Chakrabarti, P
影响因子:
64.8
作者:
Grigoryan, Gevorg;Reinke, Aaron W.;Keating, Amy E.
通讯作者:
Keating, Amy E.
影响因子:
5.6
作者:
Clackson, T;Ultsch, MH;de Vos, AM
通讯作者:
de Vos, AM
影响因子:
5.6
作者:
Hackel, Benjamin J.;Kapila, Atul;Wittrup, K. Dane
通讯作者:
Wittrup, K. Dane