Design and engineering of an O(2) transport protein.
Design and engineering of an O(2) transport protein.
复制标题
O(2)转运蛋白的设计和工程。
DOI:
10.1038/nature07841
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发表时间:
2009-03-19
期刊:
影响因子:
64.8
通讯作者:
Dutton, P. Leslie
中科院分区:
文献类型:
--
作者:
Koder, Ronald L.;Anderson, J. L. Ross;Solomon, Lee A.;Reddy, Konda S.;Moser, Christopher C.;Dutton, P. Leslie
The principles of natural protein engineering are obscured by overlapping functions and complexity accumulated through natural selection and evolution. Completely artificial proteins offer a clean slate on which to define and test these protein engineering principles, while recreating and extending natural functions. We introduce this method here with the first design of an oxygen transport protein, akin to human neuroglobin. Beginning with a simple and unnatural helix-forming sequence with just three different amino acids, we assemble a four helix bundle, position histidines to bis-his ligate hemes, and exploit helical rotation and glutamate burial on heme binding to introduce distal histidine strain and facilitate O2 binding. For stable oxygen binding without heme oxidation, water is excluded by simple packing of the protein interior and loops that reduce helical-interface mobility. O2 affinities and exchange timescales match natural globins with distal histidines with the remarkable exception that O2 binds tighter than CO.
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影响因子:
15
作者:
Koder, Ronald L.;Valentine, Kathleen G.;Dutton, P. Leslie
通讯作者:
Dutton, P. Leslie
影响因子:
2.9
作者:
Isogai, Y;Ota, M;Nishikawa, K
通讯作者:
Nishikawa, K
影响因子:
2.9
作者:
Gibney, BR;Isogai, Y;Dutton, PL
通讯作者:
Dutton, PL
DOI:
10.1073/pnas.0404387101
发表时间:
2004-08-10
影响因子:
11.1
作者:
Kaplan, J;DeGrado, WF
通讯作者:
DeGrado, WF
DOI:
10.1073/pnas.251555398
发表时间:
2001-12-04
影响因子:
11.1
作者:
Bolon, DN;Mayo, SL
通讯作者:
Mayo, SL