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Which of the following molecules bind to nascent polypeptides synthesized on the ribosomes?

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Which of the following molecules bind to nascent polypeptides synthesized on the ribosomes?

(a) Chaperonins

(b) Hsp70

(c) Hsp72

(d) Hsp

I have been asked this question in examination.

I'd like to ask this question from Chemical Basis of Life in chapter Chemical Basis of Life of Cell Biology

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Right option is (c) Hsp72

Explanation: Hsp70 is a class of molecular chaperones that bind to nascent proteins being synthesized on ribosomes. Hsp70 chaperones prevent the newly synthesized proteins from binding to other proteins in the cytosol which could lead to misfolding or aggregation.

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