Final answer:
The chaperone protein associated with the ribosome in E. coli is HSP70 (heat-shock 70) protein. It plays a role in protein trafficking to the mitochondria and assists in the folding and unfolding of proteins.
Step-by-step explanation:
The chaperone protein associated with the ribosome in E. coli is HSP70 (heat-shock 70) protein. It plays a role in protein trafficking to the mitochondria and assists in the folding and unfolding of proteins. HSP70 helps in the entry of completed mitochondrial proteins into the cytoplasm and facilitates refolding of the protein into its biologically active shape.