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Visualization of protein interactions inside the secretory pathway

Nyfeler, B. and Hauri, H. -P.. (2007) Visualization of protein interactions inside the secretory pathway. Biochemical Society transactions, Vol. 35, H. 5. pp. 970-973.

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Official URL: http://edoc.unibas.ch/dok/A5257740

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Abstract

The ER (endoplasmic reticulum) is a major protein folding and modification organelle. In its lumen, the ER processes a third of all newly synthesized proteins. To accomplish this task, numerous resident proteins capture the nascent and newly synthesized proteins. The underlying luminal protein-protein interactions, however, are inherently difficult to analyse, mainly due to their transient nature and the rather specialized environment of the ER. To overcome these limitations, we developed a PCA (protein fragment complementation assay) based on the citrine variant of YFP (yellow fluorescent protein). YFP PCA was successfully applied to visualize the protein interactions of the cargo transport receptor ERGIC-53 (endoplasmic reticulum-Golgi intermediate compartment protein of 53 kDa) with its luminal interaction partner MCFD2 (multiple coagulation factor deficiency protein 2) and its cargo proteins cathepsin Z and cathepsin C in a specific manner. With the prospect of screening cDNA libraries for novel protein-protein interactions, YFP PCA is a promising emerging technique for mapping protein interactions inside the secretory pathway in a genome-wide setting.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Pharmacology/Neurobiology (Hauri)
UniBasel Contributors:Hauri, Hans-Peter
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Portland Press
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:22 Mar 2012 14:20
Deposited On:22 Mar 2012 13:18

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