dc.creatorCesar, LMM
dc.creatorTormena, CF
dc.creatorMarques, MR
dc.creatorSilva, GVJ
dc.creatorMendes, MA
dc.creatorRittner, R
dc.creatorPalma, MS
dc.date2005
dc.date2014-07-31T14:22:15Z
dc.date2015-11-26T16:35:08Z
dc.date2014-07-31T14:22:15Z
dc.date2015-11-26T16:35:08Z
dc.date.accessioned2018-03-28T23:17:32Z
dc.date.available2018-03-28T23:17:32Z
dc.identifierHelvetica Chimica Acta. Wiley-v C H Verlag Gmbh, v. 88, n. 4, n. 796, n. 801, 2005.
dc.identifier0018-019X
dc.identifierWOS:000228762400007
dc.identifier10.1002/hlca.200590056
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75375
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75375
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1271417
dc.descriptionA new, highly active tetrahydro-p-carboline toxin from the spider Parawixia bistriata, the most-common species of social spider occurring in Brazil, was isolated. The new toxin was identified as 1,2,3,4-tetrahydro-6-hydroxy-beta-carboline (= N-[3-(2,3,4,9-tetrahydro-6-hydroxy-1H-pyrido[3,4-b]indol-1-yl)propyl]guanidine; 3). This type of alkaloid, not common among spider toxins, was found to be the most-potent constituent of the spider's chemical weaponry to kill prey. When P bistriata catch arthropods in their web, they apparently attack their prey in groups of many individuals injecting their venoms. In vivo toxicity assays with 3 demonstrated a potent lethal effect to honeybees, giving rise to clear neurotoxic effects (paralysis) before death. The compound's toxicity (LD50 value) was determined to be ca. 8 ng/g of honeybee. The investigation of the pharmacological properties and neurotoxic actions of 3 may be used in the future for the development of new drugs to be applied for pest control in agriculture.
dc.description88
dc.description4
dc.description796
dc.description801
dc.languageen
dc.publisherWiley-v C H Verlag Gmbh
dc.publisherWeinheim
dc.publisherAlemanha
dc.relationHelvetica Chimica Acta
dc.relationHelv. Chim. Acta
dc.rightsfechado
dc.rightshttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.sourceWeb of Science
dc.subjectFunnel-web Spider
dc.titleStructure determination of hydroxytrypargine: A new tetrahydro-beta-carboline toxin from the venom of the spider Parawixia bistriata
dc.typeArtículos de revistas


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