Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
22
pubmed:dateCreated
1999-1-19
pubmed:abstractText
Synaptic metabolism of the endogenous opioid octapeptide dynorphin (Dyn) A (1-8) (Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile) was studied in vitro upon its incubation with synaptosomes and with synaptosomal plasma membranes isolated from rat brain tissue. Electrospray ionization (ESI) and tandem mass spectromety were performed using an ion trap instrument, and afforded the identification of Dyn A (2-8), Dyn A (1-6) and leucine enkephalin [Dyn A (1-5)] as major metabolites. Preliminary quantitative data on the kinetics of Dyn A (1-8) degradation and metabolite formation was obtained by size-exclusion chromatography/ESI tandem mass spectrometry, and revealed an apparent involvement of several enzymes in the metabolism upon incubation with synaptosomes. Predominant formation of Dyn A (1-6) was observed with the synaptosomal plasma membranes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0951-4198
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1796-800
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Identification of synaptic metabolites of dynorphin A (1-8) by electrospray ionization and tandem mass spectrometry.
pubmed:affiliation
Center for Drug Discovery, College of Pharmacy, University of Florida, Gainesville 32610-0497, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.