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| Boldrini-França,Johara; Pinheiro-Junior,Ernesto Lopes; Arantes,Eliane Candiani. |
| ABSTRACT Background: The prevalent class of snake venom serine proteases (SVSP) in Viperidae venoms is the thrombin-like enzymes, which, similarly to human thrombin, convert fibrinogen into insoluble fibrin monomers. However, thrombin-like serine proteases differ from thrombin by being unable to activate factor XIII, thus leading to the formation of loose clots and fibrinogen consumption. We report the functional and biological characterization of a recombinant thrombin-like serine protease from Crotalus durissus collilineatus, named rCollinein-1. Methods: Heterologous expression of rCollinein-1 was performed in Pichia pastoris system according to a previously standardized protocol, with some modifications. rCollinein-1 was purified from the culture... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Snake venom; Serine proteases; Thrombin-like enzymes; Coagulation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992019000100306 |
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| Castanheira,Letícia Eulalio; Rodrigues,Renata Santos; Boldrini-França,Johara; Fonseca,Fernando PP; Henrique-Silva,Flávio; Homsi-Brandeburgo,Maria I; Rodrigues,Veridiana M. |
| Background Hyaluronate is one of the major components of extracellular matrix from vertebrates whose breakdown is catalyzed by the enzyme hyaluronidase. These enzymes are widely described in snake venoms, in which they facilitate the spreading of the main toxins in the victim’s body during the envenoming. Snake venoms also present some variants (hyaluronidases-like substances) that are probably originated by alternative splicing, even though their relevance in envenomation is still under investigation. Hyaluronidases-like proteins have not yet been purified from any snake venom, but the cDNA that encodes these toxins was already identified in snake venom glands by transcriptomic analysis. Herein, we report the cloning and in silicoanalysis of the first... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative splicing; Hyaluronidase-like; Snake venom. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992014000200330 |
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