Description_x000D_ Amino Acid Sequence_x000D_ Tyr-Ala-Gly-Phe-Leu_x000D_ Packaging_x000D_ 5 mg in serum bottle_x000D_ Biochem/physiol Actions_x000D_ The Enkephalin amid peptide [D-Ala2]-Leucine enkephalin ((DADLE), a delta opioid agonist, is a degradation resistant long-acting Leu-enkephalin analog used to study the signaling pathway of delta opioid receptors._x000D_ Other Notes_x000D_ Potent, long-acting Leu-enkephalin analog that is resistant to enzymatic degradation