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dc.creatorBorja, Miguel
dc.creatorNeri Castro, Edgar
dc.creatorCastañeda Gaytán, Gamaliel
dc.creatorStrickland, Jason L.
dc.creatorParkinson, Christopher L.
dc.creatorCastañeda Gaytán, Juan
dc.creatorPonce López, Roberto
dc.creatorLomonte, Bruno
dc.creatorOlvera Rodríguez, Alejandro
dc.creatorAlagón Cano, Alejandro
dc.creatorPérez Morales, Rebeca
dc.description.abstractRattlesnake venoms may be classified according to the presence/absence and relative abundance of the neurotoxic phospholipases A2s (PLA2s), such as Mojave toxin, and snake venom metalloproteinases (SVMPs). In Mexico, studies to determine venom variation in Mojave Rattlesnakes (Crotalus scutulatus scutulatus) are limited and little is known about the biological and proteolytic activities in this species. Tissue (34) and venom (29) samples were obtained from C. s. scutulatus from different locations within their distribution in Mexico. Mojave toxin detection was carried out at the genomic (by PCR) and protein (by ELISA) levels for all tissue and venom samples. Biological activity was tested on representative venoms by measuring LD50 and hemorrhagic activity. To determine the approximate amount of SVMPs, 15 venoms were separated by RP-HPLC and variation in protein profile and proteolytic activity was evaluated by SDS-PAGE (n = 28) and Hide Powder Azure proteolytic analysis (n = 27). Three types of venom were identified in Mexico which is comparable to the intraspecific venom diversity observed in the Sonoran Desert of Arizona, USA: Venom Type A ( Type II), with Mojave toxin, highly toxic, lacking hemorrhagic activity, and with scarce proteolytic activity; Type B ( Type I), without Mojave toxin, less toxic than Type A, highly hemorrhagic and proteolytic; and Type A + B, containing Mojave toxin, as toxic as venom Type A, variable in hemorrhagic activity and with intermediate proteolytic activity. We also detected a positive correlation between SVMP abundance and hemorrhagic and proteolytic activities. Although more sampling is necessary, our results suggest that venoms containing Mojave toxin and venom lacking this toxin are distributed in the northwest and southeast portions of the distribution in Mexico, respectively, while an intergradation in the middle of both zones is presentes_ES
dc.description.sponsorshipConsejo Nacional de Ciencia y Tecnologia/[221343]/CONACYT/Méxicoes_ES
dc.rightsCC0 1.0 Universal*
dc.sourceToxins, vol. 10(1), pp.1-19es_ES
dc.subjectMojave Rattlesnakeses_ES
dc.subjectMojave toxines_ES
dc.subjectVenom phenotypeses_ES
dc.subjectHemorrhagic activityes_ES
dc.subject615.946 72 Venenos animaleses_ES
dc.subjectSnake venomes_ES
dc.titleBiological and proteolytic variation in the venom of Crotalus scutulatus scutulatus from Mexicoes_ES
dc.typeartículo científicoes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Instituto Clodomiro Picado (ICP)es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Salud::Facultad de Microbiologíaes_ES

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CC0 1.0 Universal
Except where otherwise noted, this item's license is described as CC0 1.0 Universal