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Scales of biodiversity: integrated studies of snake evolution and venom function

Grant number: 17/24546-3
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): February 01, 2018
Effective date (End): August 31, 2021
Field of knowledge:Biological Sciences - Biology
Acordo de Cooperação: NSF - Dimensions of Biodiversity and BIOTA
Principal Investigator:Ana Maria Moura da Silva
Grantee:Luciana Aparecida Freitas de Sousa
Host Institution: Instituto Butantan. Secretaria da Saúde (São Paulo - Estado). São Paulo , SP, Brazil
Associated research grant:16/50127-5 - Dimensions US-BIOTA São Paulo: scales of biodiversity: integrated studies of snake venom evolution and function across multiple levels of diversity, AP.BTA.TEM
Associated scholarship(s):18/08589-7 - Mechanisms involved in the phenotype variability of venoms from snakes from the same group (Bothrops), BE.EP.PD


Proteolytic enzymes and phospholipases are key components in the venom of snakes, especially in viperids. They are involved in the capture and digestion of prey acting on several targets important for the control of hemostasis and also contribute to the digestion of tissues. In this project, we will evaluate the activities of phospholipases, serine proteinases and metalloproteinases in the venom samples of all the individuals collected in the 120 species included in the project, correlating these data with the phylogenetic analyzes in progress by the other groups. The venoms highly expressing these enzymes will be selected and tested for their digestive properties of the tissues of mammalian prey, lizards and arthropods and will be used for pharmacological approaches to identify disorders of the hemostatic system that they induce and their main mechanisms of action. These data will be fundamental for a better understanding of the relevance of the functional characteristics of the venom components to the snake speciation and evolution process. (AU)

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GIMENES, SARAH N. C.; SACHETT, JACQUELINE A. G.; COLOMBINI, MONICA; FREITAS-DE-SOUSA, LUCIANA A.; IBIAPINA, HIOCHELSON N. S.; COSTA, ALLYSON G.; SANTANA, MONIQUE F.; PARK, JEONG-JIN; SHERMAN, NICHOLAS E.; FERREIRA, LUIZ C. L.; et al. Observation of Bothrops atrox Snake Envenoming Blister Formation from Five Patients: Pathophysiological Insights. TOXINS, v. 13, n. 11, . (17/24546-3, 18/13108-8, 19/08208-6, 16/50127-5)
BAYONA-SERRANO, JUAN DAVID; VIALA, VINCENT LOUIS; RAUTSAW, RHETT M.; SCHRAMER, TRISTAN D.; BARROS-CARVALHO, GESIELE A.; NISHIYAMA, JR., MILTON YUTAKA; FREITAS-DE-SOUSA, LUCIANA A.; MOURA-DA-SILVA, ANA MARIA; PARKINSON, CHRISTOPHER L.; GRAZZIOTIN, FELIPE GOBBI; et al. Replacement and Parallel Simplification of Nonhomologous Proteinases Maintain Venom Phenotypes in Rear-Fanged Snakes. Molecular Biology and Evolution, v. 37, n. 12, p. 3563-3575, . (13/07467-1, 16/50127-5, 17/24546-3, 17/24498-9)
TIOYAMA, EMILLY CAMPOS; BAYONA-SERRANO, JUAN DAVID; PORTES-JUNIOR, JOSE A.; NACHTIGALL, PEDRO GABRIEL; DE SOUZA, VINICIUS CARIUS; BERALDO-NETO, EMIDIO; GRAZZIOTIN, FELIPE GOBBI; JUNQUEIRA-DE-AZEVEDO, INACIO L. M.; MOURA-DA-SILVA, ANA MARIA; FREITAS-DE-SOUSA, LUCIANA APARECIDA. The Venom Composition of the Snake Tribe Philodryadini: 'Omic' Techniques Reveal Intergeneric Variability among South American Racers. TOXINS, v. 15, n. 7, p. 23-pg., . (16/50127-5, 18/08589-7, 17/24546-3)
BAYONA-SERRANO, JUAN DAVID; GRAZZIOTIN, FELIPE GOBI; SALAZAR-VALENZUELA, DAVID; VALENTE, RICHARD H.; NACHTIGALL, PEDRO GABRIEL; COLOMBINI, MONICA; MOURA-DA-SILVA, ANA; JUNQUEIRA-DE-AZEVEDO, INACIO LOIOLA MEIRELLES. Independent Recruitment of Different Types of Phospholipases A2 to the Venoms of Caenophidian Snakes: The Rise of PLA(2)-IIE within Pseudoboini (Dipsadidae). Molecular Biology and Evolution, v. 40, n. 7, p. 15-pg., . (13/07467-1, 17/24498-9, 16/50127-5, 17/24546-3)
FREITAS-DE-SOUSA, LUCIANA A.; NACHTIGALL, PEDRO G.; FORTES-JUNIOR, JOSE A.; HOLDING, MATTHEW L.; NYSTROM, GUNNAR S.; ELLSWORTH, SCHYLER A.; GUIMARIES, NORANATHAN C.; TIOYAMA, EMILLY; ORTIZ, FLORA; SILVA, BRUNO R.; et al. Size Matters: An Evaluation of the Molecular Basis of Ontogenetic Modifications in the Composition of Bothrops jararacussu Snake Venom. TOXINS, v. 12, n. 12, . (18/25749-8, 18/08589-7, 18/15753-8, 18/26520-4, 16/50127-5, 17/24546-3)
S. OLIVEIRA, SAMELLA; C. ALVES, ELIANE; S. SANTOS, ALESSANDRA; F. NASCIMENTO, ELIZANDRA; T. PEREIRA, JOAO PEDRO; M. SILVA, IRAN; A. G. SACHETT, JACQUELINE; S. SARRAFF, LYBIA KASSIA; FREITAS-DE-SOUSA, LUCIANA APARECIDA; COLOMBINI, MONICA; et al. Bleeding Disorders inBothrops atroxEnvenomations in the Brazilian Amazon: Participation of Hemostatic Factors and the Impact of Tissue Factor. TOXINS, v. 12, n. 9, . (17/24546-3)
MOURA-DA-SILVA, ANA MARIA; CONTRERAS-BERNAL, JORGE CARLOS; GIMENES, SARAH NATALIE CIRILO; FREITAS-DE-SOUSA, LUCIANA APARECIDA; PORTES-JUNIOR, JOSE ANTONIO; PEIXOTO, PEDRO DA SILVA; IWAI, LEO KEI; DE MOURA, VALERIA MOURAO; BISNETO, PEDRO FERREIRA; LACERDA, MARCUS; et al. The relationship between clinics and the venom of the causative Amazon pit viper (Bothrops atrox). PLoS Neglected Tropical Diseases, v. 14, n. 6, . (13/07467-1, 18/13108-8, 18/25749-8, 17/24546-3)

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