Linked Life Data

2702713

Source:http://linkedlifedata.com/resource/pubmed/id/2702713

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1989-5-24
pubmed:abstractText
Rutaecarpine alkaloids have the capacity to inhibit specific 2,3,7,8-[1,6-3H]tetrachlorodibenzo-p-dioxin (TCDD) binding in rat liver cytosol, as analysed by electrofocusing in polyacrylamide gel. The IC50 value for binding of 7,8-dehydrorutaecarpine was estimated to approximately 7 nM indicating a high-affinity interaction, whereas rutaecarpine appeared less active (IC50 approximately 110 nM). These findings are of interest in view of the fact that analogues to these compounds may be formed following UV-irradiation of tryptophan and that such photo-products have been suggested to constitute (the) endogenous ligand(s) for the TCDD receptor. As further support of this notion, the rutaecarpine alkaloids investigated could be fitted into a rectangle of 6.8 x 13.7 A, a characteristic common for most high affinity ligands of the TCDD receptor hitherto studied. In view of their structural similarity to dehydrorutaecarpine and the agreement of their mol. wt with that of the photoproduct with the highest affinity for the TCDD receptor, we suggest deaza-analogues of dehydrorutaecarpine to represent possible candidates for the endogenous TCDD receptor ligand.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0143-3334
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
651-4
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Interactions of rutaecarpine alkaloids with specific binding sites for 2,3,7,8-tetrachlorodibenzo-p-dioxin in rat liver.
pubmed:affiliation
Department of Medical Nutrition, Karolinska Institute, Huddinge Hospital, Sweden.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't