Evolving a new protein-DNA interface via sequential introduction of permissive and specificity-switching mutations
Evolving a new protein-DNA interface via sequential introduction of permissive and specificity-switching mutations
复制标题
通过顺序引入允许突变和特异性转换突变进化出新的蛋白质-DNA 界面
DOI:
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
T. Le
中科院分区:
文献类型:
--
作者:
Adam S. B. Jalal;N. Tran;C. Stevenson;X. Tan;D. Lawson;T. Le
Specific interactions between proteins and DNA are essential to many biological processes. Yet it remains unclear how the diversification in DNA-binding specificity was brought about, and what were the mutational paths that led to changes in specificity. Using a pair of evolutionarily related DNA-binding proteins each with a different DNA preference (ParB and Noc: both having roles in bacterial chromosome maintenance), we show that specificity is encoded by a set of four residues at the protein-DNA interface. Combining X-ray crystallography and deep mutational scanning of the interface, we show that permissive mutations must be introduced before specificity-switching mutations to reprogram specificity, and that mutational paths to a new specificity do not necessarily involve dual-specificity intermediates. Overall, our results provide a glimpse into the possible evolutionary history of ParB and Noc, and in a broader context, might be useful in understanding the evolution of other classes of DNA-binding proteins.
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DOI:
10.1097/iae.0000000000001602
发表时间:
2017
期刊:
Retina (Philadelphia, Pa.)
影响因子:
--
作者:
Todorich,Bozho;Thanos,Aristomenis;Yonekawa,Yoshihiro;Thomas,BenjaminJ;Faia,LisaJ;Chang,Emmanuel;Shulman,Julia;Olsen,KarlR;Blair,MichaelP;Shapiro,MichaelP;Ferrone,Philip;Vajzovic,Lejla;Toth,CynthiaA;Lee,ThomasC;Robinson,
通讯作者:
Robinson,
DOI:
10.1101/172932
发表时间:
2017
期刊:
--
影响因子:
--
作者:
Tran N
通讯作者:
Tran N
影响因子:
56.9
作者:
Lynch, M;Conery, JS
通讯作者:
Conery, JS
影响因子:
5.5
作者:
Maier JA;Martinez C;Kasavajhala K;Wickstrom L;Hauser KE;Simmerling C
通讯作者:
Simmerling C
影响因子:
4.4
作者:
Price, DJ;Brooks, CL
通讯作者:
Brooks, CL