Specific interaction between OutD, an Erwinia chrysanthemi outer membrane protein of the general secretory pathway, and secreted proteins
Specific interaction between OutD, an Erwinia chrysanthemi outer membrane protein of the general secretory pathway, and secreted proteins
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一般分泌途径的菊欧文氏菌外膜蛋白 OutD 与分泌蛋白之间的特异性相互作用
DOI:
10.1093/emboj/16.11.3007
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发表时间:
1997
期刊:
影响因子:
--
通讯作者:
G. Condemine
中科院分区:
文献类型:
--
作者:
V. Shevchik;J. Robert‐Baudouy;G. Condemine
OutD is an outer membrane component of the main terminal branch of the general secretory pathway (GSP) in Erwinia chrysanthemi. We analyzed the interactions of OutD with other components of the GSP (Out proteins) and with secreted proteins (PelB, EGZ and PemA). OutD is stabilized by its interaction with another GSP component, OutS. The 62 C‐terminal amino acids of OutD are necessary for this interaction. In vivo formation of OutD multimers, up to tetramers, was proved after the dissociation in mild conditions of the OutD aggregates formed in the outer membrane. Thus, OutD could form a channel‐like structure in the outer membrane. We showed that OutD is stabilized in vivo when co‐expressed with Out‐secreted proteins. This stabilization results from the formation of complexes that were detected in experiments of co‐immunoprecipitation and co‐sedimentation in sucrose density gradients. The presence of the N‐terminal part of OutD is required for this interaction. The interaction between OutD and the secreted protein PelB was confirmed in vitro, suggesting that no other component of the GSP is required for this recognition. No interaction was observed between the E.carotovora PelC and the E.chrysanthemi OutD. Thus, the interaction between GspD and the secreted proteins present in the periplasm could be the key to the specificity of the secretion machinery and a trigger for that process.
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DOI:
--
发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Copeland,BR;Richter,RJ;Furlong,CE
通讯作者:
Furlong,CE
影响因子:
2.6
作者:
Maneewannakul,S;Maneewannakul,K;Ippen-Ihler,K
通讯作者:
Ippen-Ihler,K
DOI:
10.1073/pnas.82.4.1074
发表时间:
1985-01-01
影响因子:
11.1
作者:
TABOR, S;RICHARDSON, CC
通讯作者:
RICHARDSON, CC
DOI:
10.1002/j.1460-2075.1995.tb07155.x
发表时间:
1995
期刊:
The EMBO journal
影响因子:
--
作者:
Sandkvist,M;Bagdasarian,M;Howard,SP;DiRita,VJ
通讯作者:
DiRita,VJ