Probing allostery through DNA.
Probing allostery through DNA.
复制标题
通过 DNA 探索变构
DOI:
10.1126/science.1229223
复制
发表时间:
2013-02-15
期刊:
影响因子:
--
通讯作者:
Xie XS
中科院分区:
文献类型:
--
作者:
Kim S;Broströmer E;Xing D;Jin J;Chong S;Ge H;Wang S;Gu C;Yang L;Gao YQ;Su XD;Sun Y;Xie XS
Allostery is well documented for proteins but less recognized for DNA-protein interactions. Here we report that specific binding of a protein on DNA is substantially stabilized or destabilized by another protein bound nearby. The ternary complex's free energy oscillates as a function of the separation between the two proteins with a periodicity of ~10 base pairs, the helical pitch of B-form DNA, and a decay length of ~15 base pairs. The binding affinity of a protein near a DNA hairpin is similarly dependent on their separation, which—together with molecular dynamics simulations—suggests that deformation of the double-helical structure is the origin of DNA allostery. The physiological relevance of this phenomenon is illustrated by its effect on gene expression in live bacteria and on a transcription factor's affinity near nucleosomes.
登录
查看更多内容
影响因子:
5.6
作者:
Lowary, PT;Widom, J
通讯作者:
Widom, J
影响因子:
30.8
作者:
John S;Sabo PJ;Thurman RE;Sung MH;Biddie SC;Johnson TA;Hager GL;Stamatoyannopoulos JA
通讯作者:
Stamatoyannopoulos JA
影响因子:
8.6
作者:
Koslover, Elena F.;Spakowitz, Andrew J.
通讯作者:
Spakowitz, Andrew J.
影响因子:
64.8
作者:
HOGAN, M;DATTAGUPTA, N;CROTHERS, DM
通讯作者:
CROTHERS, DM
影响因子:
4
作者:
Moretti, Rocco;Donato, Leslie J.;Ansari, Aseem Z.
通讯作者:
Ansari, Aseem Z.