Cited by 176Heat shock proteins researchProtein Structure and DynamicsProtein purification and stability

Correcting temperature-sensitive protein folding defects

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Brown, C R, Hong-Brown, L Q, Welch, W J·1997·Journal of Clinical Investigation

Abstract

Recently, we found that different low molecular weight compounds, all known to stabilize proteins in their native conformation, are effective in correcting the temperature-sensitive protein folding defect associated with the deltaF508 cystic fibrosis transmembrane regulator (CFTR) protein. Here we examined whether the folding of other proteins which exhibit temperature-sensitive folding defects also could be corrected via a similar strategy. Cell lines expressing temperature-sensitive mutants of the tumor suppressor protein p53, the viral oncogene protein pp60src, or a ubiquitin activating enzyme E1, were incubated at the nonpermissive temperature (39.5 degrees C) in the presence of glycerol, trimethylamine N-oxide or deuterated water. In each case, the cells exhibited phenotypes similar to those observed when the cells were incubated at the permissive temperature (32.5 degrees C), indicative that the particular protein folding defect had been corrected. These observations, coupled with our earlier work and much older studies in yeast and bacteria, indicate that protein stabilizing agents are effective in vivo for correcting protein folding abnormalities. We suggest that this type of approach may prove to be useful for correcting certain protein folding abnormalities associated with human diseases.

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Authors
Brown, C. R., Hong-Brown, L. Q., & Welch, W. J.
Affiliations
University of California, San Francisco (US)
Venue
Journal of Clinical Investigation
Published
1997-03-15
Volume
99
Issue
6
Pages
1432-1444
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2092291840
Cited by
176
References
37
Citations by year
2026: 1 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 4 · 2020: 3 · 2019: 1 · 2018: 5 · 2017: 6 · 2016: 5 · 2015: 1 · 2014: 3 · 2013: 5 · 2012: 3
FWCI
3.56
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Cystic Fibrosis Research
  • National Institutes of Health
  • National Institute of General Medical Sciences (GM33551, R01GM033551)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein purification and stability
Keywords
ΔF508-CFTR, cystic fibrosis, p53, pp60src, E1 ubiquitin-activating enzyme, glycerol, trimethylamine N-oxide, heavy water, protein misfolding
MeSH terms
Animals, Cell Line, Glycerol, Ligases, Methylamines, Mutation, Temperature, Tumor Suppressor Protein p53, Proto-Oncogene Proteins pp60(c-src), Protein Folding, Deuterium Oxide, Ubiquitin-Activating Enzymes, Ubiquitin-Protein Ligases, Rats

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