CsgE / CsgF / CsgG - Curli Product Assembly/ Transport Component
Family:
Curli production assembly/ transport components, CsgG family
Description:
Curli are extracellular amyloid fibers produced by Escherichia coli that are critical for biofilm formation and adhesion to biotic and abiotic surfaces. CsgA and CsgB are the major and minor curli subunits, respectively, while CsgE, CsgF, and CsgG direct the extracellular localization and assembly of curli subunits into fibers.
Function and Topology:
CsgG forms an oligomeric transport complex composed of nine anticodon-binding-domain-like units that give rise to a 36-stranded β-barrel that traverses the bilayer and is connected to a cage-like vestibule in the periplasm.
Testimonials
Prof. Dr. Stefan Howorka - Statement about the Orbit 16
“Within our research on the CsgG channel, Nanion’s Orbit 16 - combined with Ionera's MECA Chip technology - has substantially boosted our scientific output. The outstanding research tool is easy to handle and speeds up the parallel generation of 16 bilayers. By increasing the throughput of single-channel current recordings, it is a breakthrough in the biophysical analysis of pore forming proteins. Within approximately one week’s worth of lab time, we had the data needed for the recent paper in Nature. This would have been hard to achieve using conventional serial bilayer methods. In addition, the ease-of-use provided by the Orbit 16 shortens the learning curve for making high quality bilayer recordings. As a benefit in academia, students can now get hands-on experience with bilayer recordings also for shorter projects.“
Dr. Stefan Howorka, Associate Professor of Organic Chemistry and Chemical Biology
University College London, London, UK
Publications
2014 - Structural and mechanistic insights into the bacterial amyloid secretion channel CsgG
Orbit 16 publication in Nature (2014)
Authors:
Goyal P., Krasteva P.V., Van GervenN., GubelliniF., Van den BroeckI., Troupiotis-TsaïlakiA., Jonckheere W., Péhau-ArnaudetG., Pinkner J.S., ChapmanM.R., Hultgren S.J., Howorka S., FronzesR., Remaut H.