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The Escherichia coli DnaK chaperone machine and bacteriophage Mu late transcription
- Source :
- Molecular microbiology. 15(5)
- Publication Year :
- 1995
-
Abstract
- Summary Bacteriophage Mu does not grow on temperature-sensitive E. coli dnaK mutants at elevated temperatures because of a defect in late transcription. As the Mu-encoded C protein is required for activation of transcription from the phage late promoters, we attempted to determine if DnaK and its accessory proteins DnaJ and GrpE are required for synthesis of C protein or at a later step. We found that the chaperones act in Mu late transcription beyond C-protein synthesis, and that C-protein stability is decreased in the mutant hosts. This suggests that the DnaK chaperone machine may be required for the proper folding and/or multi-merization of C protein.
- Subjects :
- Hot Temperature
Transcription, Genetic
Mutant
Gene Expression
medicine.disease_cause
Microbiology
Bacteriophage mu
C protein
Viral Proteins
Bacterial Proteins
Transcription (biology)
medicine
Escherichia coli
HSP70 Heat-Shock Proteins
Promoter Regions, Genetic
Molecular Biology
Heat-Shock Proteins
biology
Basic Helix-Loop-Helix Leucine Zipper Transcription Factors
Escherichia coli Proteins
Promoter
HSP40 Heat-Shock Proteins
beta-Galactosidase
Molecular biology
Cell biology
DNA-Binding Proteins
Kinetics
Chaperone (protein)
biology.protein
Trans-Activators
bacteria
Bacteriophage Mu
Subjects
Details
- ISSN :
- 0950382X
- Volume :
- 15
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Molecular microbiology
- Accession number :
- edsair.doi.dedup.....dee415d3640d63a715fef369a0eb3cfa