Caititu: a tool to graphically represent peptide sequence coverage and domain 
distribution

Carvalho, Paulo C; Junqueira, Magno; Valente, Richard H; Domont, Gilberto B

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Caititu: a tool to graphically represent peptide sequence coverage and domain distribution

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Junqueira, Magno
Max Planck Institute of Molecular Cell Biology and Genetics, Max Planck Society;

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Citation

Carvalho, P. C., Junqueira, M., Valente, R. H., & Domont, G. B. (2008). Caititu: a tool to graphically represent peptide sequence coverage and domain distribution. Journal of Proteomics, 71(4), 486-489.

Cite as: https://hdl.handle.net/21.11116/0000-0001-0DEC-8

Abstract

Here we present Caititu, an easy-to-use proteomics software to graphically represent peptide sequence coverage and domain distribution for different correlated samples (e.g. originated from 2D gel spots) relatively to the full-sequence of the known protein they are related to. Although Caititu has a broad applicability, we exemplify its usefulness in Toxinology using snake venom as a model. For example, proteolytic processing may lead to inactivation or loss of domains. Therefore, our proposed graphic representation for peptides identified by two dimensional electrophoresis followed by mass spectrometric identification of excised spots can aid in inferring what kind of processing happened to the toxins, if any. Caititu is freely available to download at: http://pcarvalho.com/things/caititu.