Characterization of Bothrops jararaca coagulation inhibitor (BjI) and presence of similar protein in plasma of other animals

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dc.contributor.authorTanaka-Azevedo, A. M.
dc.contributor.authorTorquato, RJS
dc.contributor.authorTanaka, A. S.
dc.contributor.authorSano-Martins, I. S.
dc.contributor.institutionInst Butantan
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T12:37:21Z
dc.date.available2016-01-24T12:37:21Z
dc.date.issued2004-09-01
dc.description.abstractBjI, a protein isolated from Bothrops jararaca snake blood, inhibits the coagulant activity of thrombin. This protein presents two bands of 109 and 138 kDa by SDS-PAGE under reducing conditions. in order to verify the presence of BjI-like proteins in plasma of other animals (reptiles and non-reptiles), we raised a specific polyclonal antibody in mice to it, and we verified immunological cross-reaction by western blotting, considering as positive reactions the development of bands with either 109 or 138 kDa. Similar proteins were identified in Bothrops neuwiedi and Crotalus durissus terrificus snakes. in contrast, no BjI-like protein in other classes of animals was noticeable, nor in other snakes tested. Interestingly, a prolonged thrombin time was found only in snake plasmas that showed similar BjI proteins. BjI bound to two proteins of B. jararaca venom, identified by western blotting. the N-terminal of the B. jararaca venom proteins showed similarity with thrombin-like proteins isolated from other snake venoms. in conclusion, there are similar proteins to BjI in plasmas of B. neuwiedi and Crotalus durissus terrificus, and these proteins also prolong thrombin time. Moreover, these results evidence the presence of target enzymes in snake venom for plasma BjI. (C) 2004 Elsevier B.V. All rights reserved.en
dc.description.affiliationInst Butantan, Lab Fisiopatol, BR-05503900 São Paulo, Brazil
dc.description.affiliationUNIFESP, Dept Bioquim, São Paulo, Brazil
dc.description.affiliationUnifespUNIFESP, Dept Bioquim, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent289-294
dc.identifierhttp://dx.doi.org/10.1016/j.toxicon.2004.06.001
dc.identifier.citationToxicon. Oxford: Pergamon-Elsevier B.V., v. 44, n. 3, p. 289-294, 2004.
dc.identifier.doi10.1016/j.toxicon.2004.06.001
dc.identifier.issn0041-0101
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/27923
dc.identifier.wosWOS:000223572600008
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofToxicon
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.subjectblood coagulationen
dc.subjectsnake plasmaen
dc.subjectBothrops jararacaen
dc.subjectthrombin inhibitoren
dc.titleCharacterization of Bothrops jararaca coagulation inhibitor (BjI) and presence of similar protein in plasma of other animalsen
dc.typeinfo:eu-repo/semantics/article
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