A comprehensive, high-resolution map of a gene's fitness landscape.
A comprehensive, high-resolution map of a gene's fitness landscape.
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DOI:
10.1093/molbev/msu081
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发表时间:
2014-06
影响因子:
10.7
通讯作者:
Ostermeier M
中科院分区:
文献类型:
--
作者:
Firnberg E;Labonte JW;Gray JJ;Ostermeier M
Mutations are central to evolution, providing the genetic variation upon which selection acts. A mutation’s effect on the suitability of a gene to perform a particular function (gene fitness) can be positive, negative, or neutral. Knowledge of the distribution of fitness effects (DFE) of mutations is fundamental for understanding evolutionary dynamics, molecular-level genetic variation, complex genetic disease, the accumulation of deleterious mutations, and the molecular clock. We present comprehensive DFEs for point and codon mutants of the Escherichia coli TEM-1 β-lactamase gene and missense mutations in the TEM-1 protein. These DFEs provide insight into the inherent benefits of the genetic code’s architecture, support for the hypothesis that mRNA stability dictates codon usage at the beginning of genes, an extensive framework for understanding protein mutational tolerance, and evidence that mutational effects on protein thermodynamic stability shape the DFE. Contrary to prevailing expectations, we find that deleterious effects of mutation primarily arise from a decrease in specific protein activity and not cellular protein levels.
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影响因子:
9.8
作者:
Charneski CA;Hurst LD
通讯作者:
Hurst LD
DOI:
10.1073/pnas.89.22.10915
发表时间:
1992-11-15
影响因子:
11.1
作者:
HENIKOFF, S;HENIKOFF, JG
通讯作者:
HENIKOFF, JG
影响因子:
14.9
作者:
Firnberg E;Ostermeier M
通讯作者:
Ostermeier M
影响因子:
9.9
作者:
Bentele, Kajetan;Saffert, Paul;Bluethgen, Nils
通讯作者:
Bluethgen, Nils
影响因子:
2.4
作者:
Counago, Rafael;Wilson, Corey J.;Shamoo, Yousif
通讯作者:
Shamoo, Yousif