Linked Life Data

8070970

Source:http://linkedlifedata.com/resource/pubmed/id/8070970

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1994-9-27
pubmed:abstractText
The sea anemone polypeptide anthopleurin-A (AP-A) at nanomolar concentrations enhances myocardial contractility without affecting automaticity. It has a therapeutic index higher than that of the digitalis glycosides, and may serve as a molecular model for designing a new class of inotropic drugs acting on the myocardial Na channel at site 3. AP-A is a 49 residue peptide crosslinked by three disulfide bonds; its tertiary structure has been determined by NMR. Here we report the solid-phase synthesis of this polypeptide. Synthetic AP-A displayed CD and NMR spectra identical with those of the natural toxin; it possessed 94 +/- 15% of the inotropic activity of natural AP-A. Therefore, it is feasible to prepare various type 1 sea anemone toxin analogs by solid-phase chemical synthesis in order to identify side chains important for peptide folding and interaction with sodium channels.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0367-8377
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
463-70
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Synthesis of the cardiac inotropic polypeptide anthopleurin-A.
pubmed:affiliation
Bachem Bioscience Inc., Department of Peptide Chemistry, Philadelphia, Pennsylvania.
pubmed:publicationType
Journal Article, Comparative Study, In Vitro, Research Support, Non-U.S. Gov't