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Biochem Biophys Res Commun. 1983 Dec 28;117(3):695-701.

Leumorphin is a novel endogenous opioid peptide derived from preproenkephalin B.

Abstract

Using synthetic leumorphin, we obtained antisera for leumorphin and set up two radioimmunoassays (RIAs) with different specificities. Gel exclusion chromatography coupled with the two RIAs showed the existence of a considerable amount of leumorphin-like peptide in water extracts from porcine neuro-intermediate pituitaries. Reverse phase high performance liquid chromatography revealed that leumorphin-like peptide in the water extracts was indistinguishable from synthetic leumorphin. These results along with potent opioid activity of leumorphin indicate that leumorphin is a novel endogenous opioid peptide derived from preproenkephalin B.

PMID:
6689399
[PubMed - indexed for MEDLINE]
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