Cited by 884Neuropeptides and Animal PhysiologyNeuroendocrine regulation and behaviorChemical Synthesis and Analysis

Dynorphin-(1-13), an extraordinarily potent opioid peptide.

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Goldstein, A, Tachibana, S, Lowney, L I, Hunkapiller, M, Hood, L·1979·Proceedings of the National Academy of Sciences

Abstract

We describe the opioid properties of a tridecapeptide, the sequence of which corresponds to the NH2-terminal sequence of dynorphin, a novel porcine pituitary endorphin. It contains [Leu]enkephalin. In the guinea pig ileum longitudinal muscle preparation it is about 700 times more potent than [Leu]enkephalin. Its effects in this tissue are blocked completely by naloxone, but the apparent affinity of naloxone is 1/13th that for blockade of [Leu]enkephalin or normorphine. In the mouse vas deferens, this peptide is 3 times more potent than [Leu]enkephalin. Well-washed rat brain membranes degrade the peptide rapidly, suggesting the presence of a membrane-bound degradative enzyme. The peptide displays considerable immunoreactivity in assays with antisera that have been used for the immunohistochemical localization of [Leu]enkephalin. The remarkable enhancement of the potency of [Leu]enkephalin by the COOH-terminal extension -Arg-Arg-Ile-Arg-Pro-Lys-Leu-Lys-OH suggests new interpretations concerning the structure of opiate receptors and the function of the enkephalin pentapeptides.

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Crossref · 10.1073/pnas.76.12.6666

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18 of 18 references verified0 citation errors · 0 not checkable

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  • The endogenous opiate system comprises three opioid receptor types (MOR, DOR, KOR) and their endogenous ligands endorphin, enkephalin, and dynorphin.

    “This system is comprised of three types of opioid receptors: μ (MOR), δ (DOR), and κ (KOR); and their endogenous ligands, endorphin, enkephalin and dynorphin (Hughes et al 1975; Birdsall and Hulme 1976; Goldstein et al 1979; Evans et al 1992; Kieffer et al 1992; Chen et al 1993; Yasuda et al 1993).”

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Authors
Goldstein, A., Tachibana, S., Lowney, L. I., Hunkapiller, M., & Hood, L.
Affiliations
California Institute of Technology (US)
Venue
Proceedings of the National Academy of Sciences
Published
1979-12
Volume
76
Issue
12
Pages
6666-6670
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2033680879
Cited by
882
References
18
Citations by year
2026: 8 · 2025: 9 · 2024: 8 · 2023: 14 · 2022: 10 · 2021: 14 · 2020: 23 · 2019: 13 · 2018: 8 · 2017: 9 · 2016: 6 · 2015: 8 · 2014: 16 · 2013: 23 · 2012: 18
FWCI
24.93
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
Keywords
dynorphin A(1-13), opioid peptides, leu-enkephalin, enkephalin, naloxone, opioid receptors, vas deferens, peptide degradation, immunoreactivity
MeSH terms
Amino Acid Sequence, Animals, Biological Assay, Dose-Response Relationship, Drug, Endorphins, Guinea Pigs, Ileum, Radioligand Assay, Receptors, Opioid, Structure-Activity Relationship, Swine, Rats

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