+"12aa" denotes a chain of twelve [Amino Acid](/wiki/Amino_Acid) residues, forming a short [Peptide](/wiki/Peptide). These concise sequences are fundamental units, often involved in specific biological functions or as intermediates in protein synthesis.
+## See also
+- [Protein](/wiki/Protein)
+- [Biochemistry](/wiki/Biochemistry)
+- [Polypeptide](/wiki/Polypeptide)
... 1 more lines