Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1991-1-14
pubmed:abstractText
GHRP-6 (His-D-Trp-Ala-Trp-D-Phe-LysNH2; SK&F 110679) is a hexapeptide that specifically releases growth hormone. Although derived from methionine enkephalin, 3H-SK&F 110679 binding profiles suggest that it retains little mu or delta opioid activity. In the present study, dynorphin A was a potent inhibitor of SK&F 110679 binding. However, detailed structure-activity studies using dynorphin-related compounds suggest that the interaction between SK&F 110679 and dynorphin was non-opioid in nature. The non-opioid peptide des-Tyr-dynorphin was virtually as potent an inhibitor of 3H-SK&F 110679 binding as the intact dynorphin peptide. Additionally, the non-peptide, kappa selective ligand U-50,488 was a very weak inhibitor of 3H-SK&F 110679 binding. Since dynorphin but not U-50,488 has been reported to release growth hormone, the present results suggest that a non-opioid dynorphin site participates in SK&F 110679's growth hormone releasing action.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0143-4179
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
133-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
A non-opioid pattern characterizes inhibition of growth hormone releasing peptide binding by dynorphin-related peptides.
pubmed:affiliation
R. W. Johnson Pharmaceutical Research Institute, Department of Biological Science, Springhouse, PA 19477-0776.
pubmed:publicationType
Journal Article