Question

Describe the role of signal sequences in protein targeting to different cellular compartments.

09 Feb 2026
Answer :
Word Count : 253
Signal sequences are short peptide sequences located at the N-terminus or within the internal region of proteins, guiding their transport to specific cellular compartments. These sequences act as “zip codes” that direct nascent proteins to their destinations, ensuring proper cellular function. For proteins destined for secretion, the endoplasmic reticulum (ER), or organelles like the mitochondria, signal sequences play a critical role in targeting _________ ___ ____ _____ _______ ___ _______ __________ _______ __________.
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