edoc

The assembly of the export apparatus (YscR,S,T,U,V) of the Yersinia type III secretion apparatus occurs independently of other structural components and involves the formation of an YscV oligomer

Diepold, Andreas and Wiesand, Ulrich and Cornelis, Guy R.. (2011) The assembly of the export apparatus (YscR,S,T,U,V) of the Yersinia type III secretion apparatus occurs independently of other structural components and involves the formation of an YscV oligomer. Molecular microbiology, Vol. 82, H. 2. pp. 502-514.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A5848315

Downloads: Statistics Overview

Abstract

YscV (FlhA in the flagellum) is an essential component of the inner membrane (IM) export apparatus of the type III secretion injectisome. It contains eight transmembrane helices and a large C-terminal cytosolic domain. YscV was expressed at a significantly higher level than the other export apparatus components YscR, YscS, YscT, and YscU, and YscV-EGFP formed bright fluorescent spots at the bacterial periphery, colocalizing in most cases with YscC-mCherry. This suggested that YscV is the only protein of the export apparatus that oligomerizes. Oligomerization required the cytosolic domain of YscV, as well as YscR, -S, -T, but no other Ysc protein, indicating that an IM platform can assemble independently from the membrane-ring forming proteins YscC, -D, -J. However, in the absence of YscC, -D, -J, this IM platform moved laterally at the bacterial surface. YscJ, but not YscD could be recruited to the IM platform in the absence of the secretin YscC. As YscJ was shown earlier to be also recruited by the outer membrane (OM) platform made of YscC and YscD, we infer that assembly of the injectisome proceeds through the independent assembly of an IM and an OM platform that merge through YscJ.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Molecular Microbiology (Cornelis)
UniBasel Contributors:Cornelis, Guy R. and Wiesand, Ulrich
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Blackwell
ISSN:0950-382X
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:14 Sep 2012 07:17
Deposited On:14 Sep 2012 06:38

Repository Staff Only: item control page