J-domain protein chaperone circuits in proteostasis and disease
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The ribosome-bound Trigger Factor (TF) chaperone assists folding of newly synthesized polypeptides and participates in the assembly of macromolecular complexes. In the present study we showed that multiple distinct TF paralogues are present in genomes of D ...
The specific labeling of proteins with synthetic probes is a powerful approach to study protein function and protein tags have been widely used for this purpose. A well-established example for a self-labeling protein tag is SNAP-tag. It specifically reacts ...
Molecular chaperones are an essential part of the machinery that avoids protein aggregation and misfolding in vivo. However, understanding the molecular basis of how chaperones prevent such undesirable interactions requires the conformational changes withi ...
The bacterial twin-arginine translocation (Tat) system is a protein targeting pathway dedicated to the transport of folded proteins across the cytoplasmic membrane. Proteins transported on the Tat pathway are synthesised as precursors with N-terminal signa ...
Peptidyl-prolyl cis/trans isomerases (PPIs) catalyze cis/trans isomerization of peptide bonds preceding proline residues. The involvement of PPI family members in protein refolding has been established in test tube experiments. Surprisingly, however, no da ...
Organohalide respiration (OHR) is a bacterial anaerobic energy metabolism that uses many chlorinated organic compounds as terminal electron donors. The process is catalyzed by a class of complex redox enzymes called reductive dehalogenases which harbour a ...
The molecular chaperone Hsp104 plays a central role in the clearance of aggregates after heat shock and the propagation of yeast prions. Hsp104's disaggregation activity and prion propagation have been linked to its ability to resolubilize or remodel prote ...
Standard proteomics methods allow the relative quantitation of levels of thousands of proteins in two or more samples. While such methods are invaluable for defining the variations in protein concentrations which follow the perturbation of a biological sys ...
The molecular chaperone Hsp90-dependent proteome represents a complex protein network of critical biological and medical relevance. Known to associate with proteins with a broad variety of functions termed clients, Hsp90 maintains key essential and oncogen ...
