2008
DOI: 10.1016/j.cbpb.2008.08.012
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Bothrops jararaca fibrinogen and its resistance to hydrolysis evoked by snake venoms

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Cited by 11 publications
(13 citation statements)
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“…Our group has purified and characterized two proteins from the plasma of B. jararaca snake, probably involved in its self-defense against accidental envenomation: (i) BjI, a blood coagulation inhibitor that recognizes thrombin-like enzymes present in B. jararaca venom by western blotting, suggesting a protective role of this protein [29] and (ii) fibrinogen [30], which showed resistance to hydrolysis caused by snake venoms. Interestingly, while bovine thrombin coagulated both B. jararaca and human fibrinogen, B. jararaca venom clotted human fibrinogen, but not B. jararaca fibrinogen.…”
Section: Introductionmentioning
confidence: 99%
“…Our group has purified and characterized two proteins from the plasma of B. jararaca snake, probably involved in its self-defense against accidental envenomation: (i) BjI, a blood coagulation inhibitor that recognizes thrombin-like enzymes present in B. jararaca venom by western blotting, suggesting a protective role of this protein [29] and (ii) fibrinogen [30], which showed resistance to hydrolysis caused by snake venoms. Interestingly, while bovine thrombin coagulated both B. jararaca and human fibrinogen, B. jararaca venom clotted human fibrinogen, but not B. jararaca fibrinogen.…”
Section: Introductionmentioning
confidence: 99%
“…Safely producing and storing this lethal arsenal within the body prior to its use creates obvious issues, and these have to some extent been overcome in snakes by the evolution of a specialised gland (the venom gland (Jackson, 2003;Weinstein, Smith & Kardong, 2009)) for storing venom and by production of inactive precursor proteins (zymogens) for many venom components (Shimokawa et al 1996;Portes-Junior et al 2014). The issue of whether a venomous snake is immune to its own venom is still largely unresolved, although there is some evidence of possible adaptations for resistance to self-envenomation (Denson, 1976;Smith et al, 2000;Takacs, Wilhelmsen & Sorota, 2001;Takacs, Wilhelmsen & Sorota, 2004;Tanaka-Azevedo et al 2004;Vieira et al 2008). Investigations of the available literature have failed to identify PeerJ PrePrints | http://dx.doi.org/10.7287/peerj.preprints.624v1 | CC-BY 4.0 Open Access | rec: 19 Nov 2014, publ: 19 Nov 2014…”
Section: Introductionmentioning
confidence: 99%
“…As proteínas tipo trombina presentes em alguns venenos das serpentes podem induzir a coagulação sanguínea em mamíferos. Porém, eles não atuam sobre os próprios plasmas, sugerindo um papel protetor no envenenamento destes animais (DENSON, 1976;NAHAS et al, 1983;VIEIRA et al, 2008 MORAIS et al, 2008;TANAKA, 2002).…”
Section: Inibidores Naturaisunclassified
“…jararaca, o fibrinogênio e a antitrombina, mostrando que o fibrinogênio destes animais, diferentemente do fibrinogênio dos mamíferos, é resistente a ação coagulante do veneno desta serpente (VIEIRA et al, 2008). Ademais, os resultados obtidos nesse estudo mostraram que a antitrombina desta serpente apresenta alta homologia estrutural e funcional com outras antitrombinas descritas previamente de outros animais, sugerindo a grande capacidade de conservação desta molécula durante a evolução (DE MORAIS et al, 2009).…”
Section: Inibidores Naturaisunclassified