Energetic communication between functional sites of the gene-3-protein during infection by phage fd.
Energetic communication between functional sites of the gene-3-protein during infection by phage fd.
复制标题
噬菌体 fd 感染期间基因 3 蛋白功能位点之间的能量通讯
DOI:
10.1016/j.jmb.2014.01.002
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发表时间:
2014
影响因子:
5.6
通讯作者:
Schmid FX.
中科院分区:
文献类型:
--
作者:
S. Hoffmann-Thoms;R. P. Jakob RP ;Schmid FX.
To initiate infection ofEscherichia coli, phage fd uses its gene-3-protein (G3P) to bind first to an F pilus and then to the TolA protein at the cell surface. G3P is normally auto-inhibited because a tight interaction between the two N-terminal domains N1 and N2 buries the TolA binding site. Binding of N2 to the pilus activates G3P by initiating long-range conformational changes that are relayed to the domain interface and to a proline timer. We discovered that the 23–28 loop of the N1 domain is critical for propagating these conformational signals. The analysis of the stability and the folding dynamics of G3P variants with a shortened loop combined with TolA interaction studies and phage infection experiments reveal how the contact between the N2 domain and the 23–28 loop of N1 is energetically linked with the interdomain region and the proline timer and how it affects phage infectivity. Our results illustrate how conformational transitions and prolylcis/transisomerization can be coupled energetically and how conformational signals to and from prolines can be propagated over long distances in proteins.
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影响因子:
46.9
作者:
V. Sieber;A. Plückthun;F. Schmid
通讯作者:
V. Sieber;A. Plückthun;F. Schmid
影响因子:
5.7
作者:
Lubkowski, J;Hennecke, F;Wlodawer, A
通讯作者:
Wlodawer, A
影响因子:
5.6
作者:
Andreas Martin;F. Schmid
通讯作者:
F. Schmid
影响因子:
5.6
作者:
Nicholas J Bennett;J. Rakonjac
通讯作者:
J. Rakonjac
DOI:
10.1074/jbc.m112.442525
发表时间:
2013
期刊:
The Journal of Biological Chemistry
影响因子:
--
作者:
S. Hoffmann-Thoms;U. Weininger;B. Eckert;R. P. Jakob;J. R. Koch;J. Balbach ;F. X. Schmid
通讯作者:
F. X. Schmid