Document Detail


Snake venomics of the Brazilian pitvipers Bothrops cotiara and Bothrops fonsecai. Identification of taxonomy markers.
MedLine Citation:
PMID:  18760386     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We report the proteomic characterization of venom of the pitvipers Bothrops cotiara and Bothrops fonsecai. Crude venoms were fractionated by reverse-phase HPLC, followed by SDS-PAGE, N-terminal sequencing, MALDI-TOF mass fingerprinting, and CID-MS/MS. Each venom contained around 30 proteins in the range of 7-110 kDa belonging to only 8 (B. cotiara) and 9 (B. fonsecai) families which may target the hemostatic system, albeit distinctly distributed among the two species. B. cotiara and B. fonsecai share medium-sized disintegrins, disintegrin-like/cysteine-rich (DC) fragments, snake venom vascular endothelial growth factor, cysteine-rich secretory proteins, serine proteinases, C-type lectins, l-amino acid oxidase, and Zn(2+)-dependent metalloproteinases. In addition, B. fonsecai expresses a high abundance PLA(2) molecule (13,890 Da), whereas PLA(2) molecules were not detected in B. cotiara's venom. This striking finding is in line with previous biochemical analyses showing the absence of phospholipasic activity in the venom of B. cotiara. The potential adaptive significance of the lack of PLA(2) molecules is enigmatic, and alternative explanations are discussed. B. fonsecai is morphologically extremely similar to B. cotiara. Our comparative proteomic analysis shows that compositional differences between their venoms can be employed as a taxonomy signature for unambiguous species identification independently of geographic origin and morphological characteristics.
Authors:
Alexandre K Tashima; Libia Sanz; Antonio C M Camargo; Solange M T Serrano; Juan J Calvete
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-08-07
Journal Detail:
Title:  Journal of proteomics     Volume:  71     ISSN:  1874-3919     ISO Abbreviation:  -     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-09-22     Completed Date:  2009-03-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101475056     Medline TA:  J Proteomics     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  473-85     Citation Subset:  IM    
Affiliation:
Laboratório Especial de Toxinologia Aplicada-CAT/CEPID, Instituto Butantan, São Paulo, 05503-900, Brazil.
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Animals
Biological Markers / chemistry,  metabolism
Bothrops / classification*,  metabolism*
Chromatography, High Pressure Liquid
Classification
Molecular Sequence Data
Proteome
Snake Venoms / chemistry,  classification*,  metabolism*
Tandem Mass Spectrometry
Chemical
Reg. No./Substance:
0/Biological Markers; 0/Proteome; 0/Snake Venoms

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