Translation and Regulation
Which binding is inhibited by pactamycin?

Peptidyl t-RNA to the 50S subunit
Initiator-tRNA to 30S/40S initiation complexes
Formation of peptide bond in P site
Aminoacyl-tRNA to the A-site of 30S subunit

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Translation and Regulation
The role of molecular chaperones is to

facilitate binding of ribosomes to mRNA
aid a newly synthesized polypeptide in folding to its proper shape
facilitate binding of RNA polymerase to DNA
degrade newly synthesized polypeptides that contain inaccurate sequences

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