scholarly journals Bordonein-L, a new L-amino acid oxidase from Crotalus durissus terrificus snake venom: isolation, preliminary characterization and enzyme stability

Author(s):  
Karla C. F. Bordon ◽  
Gisele A. Wiezel ◽  
Hamilton Cabral ◽  
Eliane C. Arantes
Biochimie ◽  
2019 ◽  
Vol 163 ◽  
pp. 33-49 ◽  
Author(s):  
Gisele A. Wiezel ◽  
Joane K. Rustiguel ◽  
David Morgenstern ◽  
Karina F. Zoccal ◽  
Lucia H. Faccioli ◽  
...  

Toxicon ◽  
2021 ◽  
Vol 193 ◽  
pp. 73-83
Author(s):  
Eduardo Oliveira Venancio de Lima ◽  
Lídia Jorge Tasima ◽  
Daniela Miki Hatakeyama ◽  
Caroline Serino-Silva ◽  
Caroline Fabri Bittencourt Rodrigues ◽  
...  

Toxicon ◽  
2016 ◽  
Vol 119 ◽  
pp. 203-217 ◽  
Author(s):  
Tuila Leveghim Teixeira ◽  
Viviane Aline Oliveira Silva ◽  
Daniel Batista da Cunha ◽  
Flávia Lino Polettini ◽  
Camila Daniele Thomaz ◽  
...  

1982 ◽  
Vol 48 (03) ◽  
pp. 277-282 ◽  
Author(s):  
I Nathan ◽  
A Dvilansky ◽  
T Yirmiyahu ◽  
M Aharon ◽  
A Livne

SummaryEchis colorata bites cause impairment of platelet aggregation and hemostatic disorders. The mechanism by which the snake venom inhibits platelet aggregation was studied. Upon fractionation, aggregation impairment activity and L-amino acid oxidase activity were similarly separated from the crude venom, unlike other venom enzymes. Preparations of L-amino acid oxidase from E.colorata and from Crotalus adamanteus replaced effectively the crude E.colorata venom in impairment of platelet aggregation. Furthermore, different treatments known to inhibit L-amino acid oxidase reduced in parallel the oxidase activity and the impairment potency of both the venom and the enzyme preparation. H2O2 mimicked characteristically the impairment effects of L-amino acid oxidase and the venom. Catalase completely abolished the impairment effects of the enzyme and the venom. It is concluded that hydrogen peroxide formed by the venom L-amino acid oxidase plays a role in affecting platelet aggregation and thus could contribute to the extended bleeding typical to persons bitten by E.colorata.


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