Secretory quality control constrains functional selection-associated protein structure innovation.
Secretory quality control constrains functional selection-associated protein structure innovation.
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分泌质量控制限制了功能选择相关的蛋白质结构创新
DOI:
10.1038/s42003-022-03220-3
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发表时间:
2022-03-25
影响因子:
5.9
通讯作者:
Wu Y
中科院分区:
文献类型:
--
作者:
Cheng B;Lv JM;Liang YL;Zhu L;Huang XP;Li HY;Potempa LA;Ji SR;Wu Y
Biophysical models suggest a dominant role of structural over functional constraints in shaping protein evolution. Selection on structural constraints is linked closely to expression levels of proteins, which together with structure-associated activities determine in vivo functions of proteins. Here we show that despite the up to two orders of magnitude differences in levels of C-reactive protein (CRP) in distinct species, the in vivo functions of CRP are paradoxically conserved. Such a pronounced level-function mismatch cannot be explained by activities associated with the conserved native structure, but is coupled to hidden activities associated with the unfolded, activated conformation. This is not the result of selection on structural constraints like foldability and stability, but is achieved by folding determinants-mediated functional selection that keeps a confined carrier structure to pass the stringent eukaryotic quality control on secretion. Further analysis suggests a folding threshold model which may partly explain the mismatch between the vast sequence space and the limited structure space of proteins. The mismatch in the conserved structure but different expression levels of C-reactive protein (CRP) in distinct species is reconciled by functional selection on hidden activities of unfolded CRPs.
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影响因子:
16.6
作者:
Braig D;Nero TL;Koch HG;Kaiser B;Wang X;Thiele JR;Morton CJ;Zeller J;Kiefer J;Potempa LA;Mellett NA;Miles LA;Du XJ;Meikle PJ;Huber-Lang M;Stark GB;Parker MW;Peter K;Eisenhardt SU
通讯作者:
Eisenhardt SU
影响因子:
9.8
作者:
Jack BR;Meyer AG;Echave J;Wilke CO
通讯作者:
Wilke CO
影响因子:
4.8
作者:
Ji, Shang-Rong;Wu, Yi;Zhao, Jing
通讯作者:
Zhao, Jing
影响因子:
7.3
作者:
Jia ZK;Li HY;Liang YL;Potempa LA;Ji SR;Wu Y
通讯作者:
Wu Y
影响因子:
3
作者:
Chen, Rong;Qi, Jianxun;Xia, Chun
通讯作者:
Xia, Chun