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Cited by 206

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beta-Lipotropin as a prohormone for the morphinomimetic peptides endorphins and enkephalins.

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Lazarus, L H, Ling, N, Guillemin, R·1976·Proceedings of the National Academy of Sciences

Abstract

The hypophysial homomeric peptide beta-lipotropin (beta-LPH-[1-91]) has no morphinomomimetic activity in a bioassay (myenteric plexus-longitudinal muscle of the guinea pig's ileum) or binding assays with stereospecific opiate-receptors of rat brain synaptosome preparations. Incubating beta-LPH-[1-91] at neutral pH with the supernatant aqueous extracts of rat brain generates (fragments of beta-LPH with) morphinomimetic activity in the same assay systems. These results are related to the recently recognized structural relationships between beta-LPH, the newly isolated peptides met-enkephalin (beta-LPH-[61-65]) and alpha-endorphin (beta-LPH-[61-76]) and also to the biologically active fragments of analogs: beta-LPH-[61-64], beta-LPH-[61-65[-NH2, (Met(O)65)-BETA-LPH-[61-65], beta-LPH-[61-69], and beta-LPH-[61-69]. Enzymatic biogenesis of these morphinomimetic peptides would preclude localizing them as such in cellular or subcellular elements with currently available methodology.

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Metadata

Authors
Lazarus, L. H., Ling, N., & Guillemin, R.
Venue
Proceedings of the National Academy of Sciences
Published
1976-06
Volume
73
Issue
6
Pages
2156-2159
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2002607913
Cited by
206
References
1
FWCI
15.09
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: beta-Lipotropin as a prohormone for the morphinomimetic peptides endorphins and enkephalins. https://app.cochat.ai/papers/10.1073/pnas.73.6.2156
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Lazarus, L. H., Ling, N., & Guillemin, R. (1976). beta-Lipotropin as a prohormone for the morphinomimetic peptides endorphins and enkephalins. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.73.6.2156

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