A suite of de novo c-type cytochromes for functional oxidoreductase engineering.
A suite of de novo c-type cytochromes for functional oxidoreductase engineering.
复制标题
一套用于功能性氧化还原酶工程的从头 C 型细胞色素。
DOI:
10.1016/j.bbabio.2015.11.003
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Watkins DW
中科院分区:
文献类型:
--
作者:
Watkins DW
Central to the design of an efficientde novoenzyme is a robust yet mutable protein scaffold. The maquette approach to protein design offers precisely this, employing simple four-α-helix bundle scaffolds devoid of evolutionary complexity and with proven tolerance towards iterative protein engineering. We recently described the design of C2, ade novodesignedc-type cytochrome maquette that undergoes post-translational modification inE. colito covalently graft heme onto the protein backbonein vivo. Thisde novocytochrome is capable of reversible oxygen binding, an obligate step in the catalytic cycle of many oxygen-activating oxidoreductases. Here we demonstrate the flexibility of both the maquette platform and the post-translational machinery ofE. coliby creating a suite of functionalde novodesignedc-type cytochromes. We explore the engineering tolerances of the maquette by selecting alternative binding sites for heme C attachment and creating di-heme maquettes either by appending an additional heme C binding motif to the maquette scaffold or by binding heme B through simple bis-histidine ligation to a second binding site. The new designs retain the essential properties of the parent design but with significant improvements in structural stability. Molecular dynamics simulations aid the rationalization of these functional improvements while providing insight into the rules for engineering heme C binding sites in future iterations. This versatile, functional suite ofde novo c-type cytochromes shows significant promise in providing robust platforms for the future engineering ofde novooxygen-activating oxidoreductases. This article is part of a Special Issue entitled Biodesign for Bioenergetics—the design and engineering of electron transfer cofactors, proteins and protein networks, edited by Ronald L. Koder and J.L. Ross Anderson.
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DOI:
10.1111/j.1742-4658.2011.08376.x
发表时间:
2011-11
期刊:
The FEBS journal
影响因子:
--
作者:
Stevens JM;Mavridou DA;Hamer R;Kritsiligkou P;Goddard AD;Ferguson SJ
通讯作者:
Ferguson SJ
影响因子:
8.4
作者:
Anderson JLR;Armstrong CT;Kodali G;Lichtenstein BR;Watkins DW;Mancini JA;Boyle AL;Farid TA;Crump MP;Moser CC;Dutton PL
通讯作者:
Dutton PL
影响因子:
14.8
作者:
Farid, Tammer A.;Kodali, Goutham;Solomon, Lee A.;Lichtenstein, Bruce R.;Sheehan, Molly M.;Fry, Bryan A.;Bialas, Chris;Ennist, Nathan M.;Siedlecki, Jessica A.;Zhao, Zhenyu;Stetz, Matthew A.;Valentine, Kathleen G.;Anderson, J. L. Ross;Wand, A. Joshua;Discher, Bohdana M.;Moser, Christopher C.;Dutton, P. Leslie
通讯作者:
Dutton, P. Leslie
DOI:
10.1073/pnas.95.18.10465
发表时间:
1998
影响因子:
11.1
作者:
Sharp,RE;Moser,CC;Rabanal,F;Dutton,PL
通讯作者:
Dutton,PL
影响因子:
2.9
作者:
BERRY, EA;TRUMPOWER, BL
通讯作者:
TRUMPOWER, BL