Which of the following statements about protein folding and posttranslational modifications of proteins is CORRECT?
A) All nascent polypeptide chains have the intrinsic ability to fold into the active conformation based on the primary structure.
B) Only eukaryotic proteins undergo alterations following translation.
C) Amino acids within a protein may be modified by molecular chaperones.
D) Signal sequence of a protein helps direct a protein to a specific location within the cell.
E) Attachment of a protein called ubiquitin directs proteins to enter into the nucleus.

Question

Quizplus · Accepted Answer

Signal sequences are short stretches of amino acids that direct the protein to specific locations within the cell, such as the endoplasmic reticulum, mitochondria, or other organelles.

Which of the Following Statements About Protein Folding and Posttranslational