Source:http://linkedlifedata.com/resource/pubmed/id/21530490
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2011-5-23
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pubmed:abstractText |
Diocleinae lectins are highly homologous in their primary structure which features metal binding sites and a carbohydrate recognition domain (CRD). Differences in the biological activity of legume lectins have been widely investigated using hemagglutination inhibition assays, isothermal titration microcalorimetry and co-crystallization with mono- and oligosaccharides. Here we report a new lectin crystal structure (ConBr) extracted from seeds of Canavalia brasiliensis, predict dimannoside binding by docking, identify the ?-aminobutyric acid (Abu) binding pocket and compare the CRD of ConBr to that of homologous lectins. Based on the hypothesis that the carbohydrate affinity of lectins depends on CRD configuration, the relationship between tridimensional structure and endothelial NO synthase activation was used to clarify differences in biological activity. Our study established a correlation between the position of CRD amino acid side chains and the stimulation of NO release from endothelium.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
1090-2104
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pubmed:author |
pubmed-author:AssreuyAna Maria SampaioAM,
pubmed-author:BenevidesRaquel GuimarãesRG,
pubmed-author:BezerraEduardo Henrique SalvianoEH,
pubmed-author:BezerraGustavo de ArrudaGde A,
pubmed-author:BezerraMaria Júlia BarbosaMJ,
pubmed-author:CavadaBenildo SousaBS,
pubmed-author:DelatorrePlínioP,
pubmed-author:MouraTales Rocha deTR,
pubmed-author:NaganoCelso ShinitiCS,
pubmed-author:RochaBruno Anderson MatiasBA,
pubmed-author:SampaioAlexandre HolandaAH
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pubmed:copyrightInfo |
Copyright © 2011 Elsevier Inc. All rights reserved.
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pubmed:issnType |
Electronic
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pubmed:day |
20
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pubmed:volume |
408
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
566-70
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pubmed:meshHeading |
pubmed-meshheading:21530490-Canavalia,
pubmed-meshheading:21530490-Carbohydrates,
pubmed-meshheading:21530490-Crystallography, X-Ray,
pubmed-meshheading:21530490-Enzyme Activation,
pubmed-meshheading:21530490-Nitric Oxide Synthase Type III,
pubmed-meshheading:21530490-Plant Lectins,
pubmed-meshheading:21530490-Protein Conformation
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pubmed:year |
2011
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pubmed:articleTitle |
Structural analysis of ConBr reveals molecular correlation between the carbohydrate recognition domain and endothelial NO synthase activation.
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pubmed:affiliation |
Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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