Please use this identifier to cite or link to this item: http://archive.cmb.ac.lk:8080/xmlui/handle/70130/5347
Title: In Situ Monitoring of Transiently Formed Molecular Chaperone Assemblies in Bacteria, Yeast, and Human Cells
Authors: Alberts, Niels
Mathangasinghe, Yasith
Nillegoda, Nadinath B.
Keywords: Biology
issue 151
proximity ligation assay
chaperone
j-domain protein
Hsp70
human
bacteria
yeast
E. coli
s.cerevisiae
protein interaction
protestasis
Issue Date: 2019
Citation: Alberts, N., Mathangasinghe, Y., & Nillegoda, N. B. (2019). In Situ Monitoring of Transiently Formed Molecular Chaperone Assemblies in Bacteria, Yeast, and Human Cells. JoVE (Journal of Visualized Experiments), (151), e60172.
Abstract: J-domain proteins (JDPs) form the largest and the most diverse co-chaperone family in eukaryotic cells. Recent findings show that specific members of the JDP family could form transient heterocomplexes in eukaryotes to fine-tune substrate selection for the 70 kDa heat shock protein (Hsp70) chaperone-based protein disaggregases. The JDP complexes target acute/chronic stress induced aggregated proteins and presumably help assemble the disaggregases by recruiting multiple Hsp70s to the surface of protein aggregates. The extent of the protein quality control (PQC) network formed by these physically interacting JDPs remains largely uncharacterized in vivo. Here, we describe a microscopybased in situ protein interaction assay named the proximity ligation assay (PLA), which is able to robustly capture these transiently formed chaperone complexes in distinct cellular compartments of eukaryotic cells. Our work expands the employment of PLA from human cells to yeast (Saccharomyces cerevisiae) and bacteria (Escherichia coli), thus rendering an important tool to monitor the dynamics of transiently formed protein assemblies in both prokaryotic and eukaryotic cells.
URI: http://archive.cmb.ac.lk:8080/xmlui/handle/70130/5347
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