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Signal sequence

Written by the Fiveable Content Team โ€ข Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated August 2025

Definition

A short sequence of amino acids, typically near the N-terminus of a protein, that directs the protein to the ER and is recognized by the signal recognition particle during translation.

AP course connection

Topic 2.9: 2.9 Cell Compartmentalization

Unit 2

"Signal sequence" also found in:

Signal sequence Definition for AP Biology | Fiveable