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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1978-4-17
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pubmed:abstractText |
Ion binding properties of antamanide-like cyclopeptides cyclo-(Pro2-Glyn-Pro2-Gly m) (n,m=1-3) have been studies by CD spectroscopy and by conductivity measurements. Cyclo-(Pro2-Gly-Pro2-Gly) forming complexes of different stoichiometry can be characterized by a strong preference of selectivity for Mg++ and Ca++ ions over alkali ions whereas the other members of the series bind selectively alkali and alkaline earth cations with ion radius of about 1 A. Three main types of CD spectra of cyclic peptides and their complexes can be differentiated. Type I showing two negative Cotton effects at around 220 nm and 200 nm (Ib, Fig. 3), type II showing a positive band around 220 nm and a strong negative one below 190 nm (e.g. Ic in acetonitrile, Fig. 4), and type III showing a strong negative band in the 205 nm region (e.g. mental complexes of Id, Fig. 6).
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Acetonitriles,
http://linkedlifedata.com/resource/pubmed/chemical/Alkalies,
http://linkedlifedata.com/resource/pubmed/chemical/Glycine,
http://linkedlifedata.com/resource/pubmed/chemical/Ions,
http://linkedlifedata.com/resource/pubmed/chemical/Peptides, Cyclic,
http://linkedlifedata.com/resource/pubmed/chemical/Proline
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0367-8377
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
10
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
329-41
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:604283-Acetonitriles,
pubmed-meshheading:604283-Alkalies,
pubmed-meshheading:604283-Chemical Phenomena,
pubmed-meshheading:604283-Chemistry,
pubmed-meshheading:604283-Electric Conductivity,
pubmed-meshheading:604283-Glycine,
pubmed-meshheading:604283-Ions,
pubmed-meshheading:604283-Peptides, Cyclic,
pubmed-meshheading:604283-Proline,
pubmed-meshheading:604283-Spectrum Analysis
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pubmed:year |
1977
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pubmed:articleTitle |
Ion binding properties in acetonitrile of cyclopeptides built up from proline and glycine residues.
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pubmed:publicationType |
Journal Article
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