Dynorphin A

Dynorphin A
Names
	Other names Dynorphin 1-13
Identifiers
CAS Number	72957-38-1 ;
PubChem CID	16130969;
UNII	VFC23V742Z ;
Properties
Chemical formula	C75H126N24O15
Molar mass	1603.95474
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Dynorphin A is a dynorphin, an endogenous opioid peptide that activates the κ-opioid receptor. Its amino acid sequence is Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-Arg-Pro-Lys-Leu-Lys.

Dynorphin A_1–8 is a truncated form of dynorphin A with the amino acid sequence: Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile. Dynorphin A_1–8 is an agonist at the mu-, kappa-, and delta-opioid receptors; it has the highest binding affinity for the kappa-opioid receptor. Structures of dynorphin A bound to the κ-opioid receptor have been reported.

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