Crystal structure of the passenger domain of the Escherichia coli autotransporter EspP.

Crystal structure of the passenger domain of the Escherichia coli autotransporter EspP.
复制标题

DOI:
10.1016/j.jmb.2011.09.028
复制
发表时间:
2011-11-11
影响因子:
5.6
通讯作者:
Pai, Emil F.
Pai, Emil F.
中科院分区:
生物学2区
文献类型:
--
作者:
Khan, Shekeb;Mian, Hira S.;Sandercock, Linda E.;Chirgadze, Nickolay Y.;Pai, Emil F.

文献摘要

参考文献

被引文献

相似文献

自转运蛋白代表了革兰氏阴性细菌产生的已知和推定毒力因子的一个大超家族。它们由负责分子特定效应功能的 N 端“乘客结构域”和负责乘客跨细菌外膜易位的 C 端“β 结构域”组成。在这里,我们展示了胞外丝氨酸蛋白酶 EspP 的过客结构域的 2.5-Å 晶体结构,该酶由病原体大肠杆菌 O157:H7 产生,也是肠杆菌科丝氨酸蛋白酶自转运蛋白 (SPATE) 的成员。与之前结构表征的 SPATE 过客结构域一样,EspP 过客结构域包含一个延伸的右手平行 β 螺旋,其前面是一个具有蛋白酶催化功能的 N 端球状结构域。然而值得注意的是,该β-螺旋不存在第二个球状结构域。我们在之前的结果中描述了 EspP 过客结构域的结构,并为 SPATE 中 β 螺旋的功能提供了另一种假设。
Autotransporters represent a large superfamily of known and putative virulence factors produced by Gram-negative bacteria. They consist of an N-terminal “passenger domain” responsible for the specific effector functions of the molecule and a C-terminal “β domain” responsible for translocation of the passenger across the bacterial outer membrane. Here we present the 2.5-Å crystal structure of the passenger domain of the extracellular serine protease EspP, produced by the pathogen Escherichia coli O157:H7 and a member of the serine protease autotransporters of Enterobacteriaceae (SPATEs). Like the previously structurally characterized SPATE passenger domains, the EspP passenger domain contains an extended right-handed parallel β-helix preceded by an N-terminal globular domain housing the catalytic function of the protease. Of note, however, is the absence of a second globular domain protruding from this β- helix. We describe the structure of the EspP passenger domain in the context of previous results and provide an alternative hypothesis for the function of the β-helix within SPATEs.
DOI: 10.1107/s0907444904019158
发表时间: 2004-12-01
影响因子: 2.2
作者:
Emsley, P;Cowtan, K
通讯作者: Cowtan, K
DOI: 10.1073/pnas.1100429108
发表时间: 2011-05-03
影响因子: 11.1
作者:
Garnham, Christopher P.;Campbell, Robert L.;Davies, Peter L.
通讯作者: Davies, Peter L.
DOI: 10.1111/j.1462-2920.2011.02431.x
发表时间: 2011-05-01
影响因子: 5.1
作者:
Brockmeyer, Jens;Aldick, Thomas;Karch, Helge
通讯作者: Karch, Helge
DOI: 10.1126/science.1546324
发表时间: 1992-03-06
期刊: SCIENCE
影响因子: 56.9
作者:
HEDSTROM, L;SZILAGYI, L;RUTTER, WJ
通讯作者: RUTTER, WJ
DOI: 10.3390/toxins2061179
发表时间: 2010-06
期刊: Toxins
影响因子: 4.2
作者:
Dautin N
通讯作者: Dautin N