Artículos de revistas
Venomic analysis of the poorly studied desert coral snake, Micrurus tschudii tschudii, supports the 3FTx/PLA2 dichotomy across Micrurus venoms
Pla Ferrer, Davinia
Zavaleta Martínez Vargas, Alfonso
Salas Arruz, María
Calvete Chornet, Juan José
The venom proteome of the poorly studied desert coral snake Micrurus tschudii tschudii was unveiled using a venomic approach, which identified ¥38 proteins belonging to only four snake venom protein families. The three-finger toxins (3FTxs) constitute, both in number of isoforms (~30) and total abundance (93.6% of the venom proteome), the major protein family of the desert coral snake venom. Phospholipases A2 (PLA2s; seven isoforms, 4.1% of the venom proteome), 1–3 Kunitz-type proteins (1.6%), and 1–2 L-amino acid oxidases (LAO, 0.7%) complete the toxin arsenal of M. t. tschudii. Our results add to the growing evidence that the occurrence of two divergent venom phenotypes, i.e., 3FTx- and PLA2-predominant venom proteomes, may constitute a general trend across the cladogenesis of Micrurus. The occurrence of a similar pattern of venom phenotypic variability among true sea snake (Hydrophiinae) venoms suggests that the 3FTx/PLA2 dichotomy may be widely distributed among Elapidae venoms.
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Snake venomics of crotalus tigris: the minimalist toxin arsenal of the deadliest neartic rattlesnake venom: evolutionary clues for generating a pan-specific antivenom against crotalid type II venoms Calvete Chornet, Juan José; Pérez, Alicia; Lomonte, Bruno; Sánchez, Elda; Sanz, Libia (Journal of Proteome Research 11(2): 1382–1390, 2012-02-03)We report the proteomic and antivenomic characterization of Crotalus tigris venom. This venom exhibits the highest lethality for mice among rattlesnakes and the simplest toxin proteome reported to date. The venom proteome ...
Venomous snakes of Costa Rica: biological and medical implications of their venom proteomic profiles analyzed through the strategy of snake venomics Lomonte, Bruno; Fernández Ulate, Julián; Sanz, Libia; Angulo Ugalde, Yamileth; Sasa Marín, Mahmood; Gutiérrez, José María; Calvete Chornet, Juan José (Journal of Proteomics XX (2014) XXX – XXX, Available online 24 February 2014, 2014-02-24)In spite of its small territory of ~50,000 km2, Costa Rica harbors a remarkably rich biodiversity. Its herpetofauna includes 138 species of snakes, of which sixteen pit vipers (family Viperidae, subfamily Crotalinae), five ...
Snake venomics and antivenomics of Bothrops atrox venoms from Colombia and the Amazon regions of Brazil, Perú and Ecuador suggest the occurrence of geographic variation of venom phenotype by a trend towards paedomorphism Núñez Rangel, Vitelbina; Cid, Pedro; Sanz, Libia; De La Torre, Pilar; Angulo Ugalde, Yamileth; Lomonte, Bruno; Gutiérrez, José María; Calvete Chornet, Juan José (2009-11-02)The venom proteomes of Bothrops atrox from Colombia, Brazil, Ecuador, and Perú were characterized using venomic and antivenomic strategies. Our results evidence the existence of two geographically differentiated venom ...