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Related to recognition site: sticky end
a location on a nucleic acid or protein to which a specific ligand binds.
1. the act of recognizing or state of being recognized.
2. in immunology, a term used to describe the functional changes occurring in immunologically competent cells on contact with antigen, involving antigen binding with a receptor on the cell surface. Called also antigen recognition.
most recognition sequences used by restriction enzymes are palindromes, some enzymes have more than one recognition sequence and some have nonpalindrome recognition sequences and may cut several nucleotides away from the recognition sequence. See also palindrome.
see restriction site.