Related Experiment Video
Updated: Aug 12, 2026

Investigating the Spreading and Toxicity of Prion-like Proteins Using the Metazoan Model Organism C. elegans
Published on: January 8, 2015
Characterization of the yeast HSP60 gene coding for a mitochondrial assembly factor
D S Reading1, R L Hallberg, A M Myers
1Department of Zoology, Iowa State University, Ames 50011.
Heat shock protein 60 (hsp60) in yeast is encoded by the HSP60 gene. This protein aids in assembling protein complexes in mitochondria, suggesting a conserved role in protein folding.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Heat shock proteins (hsp60) are conserved across species and involved in stress response.
- hsp60 homologs are found in bacteria (e.g., Escherichia coli groEL) and organelles (e.g., plant chloroplasts, animal mitochondria).
Purpose of the Study:
- To clone and characterize the nuclear gene (HSP60) encoding the hsp60 homolog in yeast (Saccharomyces cerevisiae).
- To investigate the function of yeast hsp60 in cellular processes, particularly mitochondrial complex assembly.
Main Methods:
- Gene cloning and nucleotide sequence analysis of the yeast HSP60 gene.
- Characterization of the HSP60 gene's role using a previously identified conditional-lethal mutation.
Main Results:
- The yeast HSP60 gene was cloned and sequenced, revealing homology to E. coli groEL and chloroplast RUBISCO-binding protein (RBP).
- The HSP60 gene was identified as the locus for a mutation causing defects in mitochondrial multimeric complex assembly at non-permissive temperatures.
Conclusions:
- Yeast hsp60 is homologous to bacterial GroEL and plant/animal mitochondrial chaperones.
- GroEL-related proteins likely perform an evolutionarily conserved function in facilitating protein folding and/or assembly of multi-subunit complexes.
More Related Videos
07:14Escherichia coli -Based Complementation Assay to Study the Chaperone Function of Heat Shock Protein 70
Published on: March 8, 2024
08:11Single-Animal, Single-Tube RNA Extraction for Comparison of Relative Transcript Levels via qRT-PCR in the Tardigrade Hypsibius exemplaris
Published on: January 3, 2025
Related Concept Videos
The Central Dogma
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
Mechanical Protein Function
Gene Regulation During Sporulation