Análise in silico de proteínas quinases expressas em Coffea arabica
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Data
2007
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Resumo
Apesar da indiscutível importância agronômica do café, particularmente para o Brasil, esta cultura ainda é alvo de diferentes estresses que causam perda em sua produtividade. A resposta do cafeeiro aos diferentes sinais como patógenos e de condições ambientais adversas é ainda desconhecida. Com o objetivo de identificar proteínas quinases, o banco de seqüências expressas de Café (CAFEST) foi investigado. A análise do banco de dados CafEST revelou 479 seqüências identificadas como quinases que formaram um conjunto de 153 unigenes. As proteínas codificadas pelos segmentos expressos correspondem a diferentes e importantes categorias de quinases (MAPK, MAPKK, MAPKKK, receptores, etc). A análise filogenética mostrou a conservação das proteínas expressas no cafeeiro comparado a outras plantas e fungos. Os presentes resultados indicam que a resposta a estresses seja conservada em cafeeiro, provavelmente mediada pelos mecanismos de fosforilação em cascata. Além disso, apontam para o aprofundamento dos estudos destas vias como contribuição aos fenômenos relacionados à interação planta-patógeno.
Although the unquestionable agronomical importance of the coffee, particularly for Brazil, this culture is still a target for different stresses that cause losses in its productivity. The stress response in coffee plants to the different signals as pathogens and adverse environmental conditions is still unknown. The goal of the present work was to investigate CAFEST data bank in the context of protein kinases. Data in silico analysis disclosed 479 identified sequences as kinases that formed a set of 153 unigenes. The proteins expressed correspond to different and important categories of kinases (MAPK, MAPKK, MAPKKK, receptors, etc). The phylogenetic analysis showed the conservation of expressed proteins in cofee plants and other plants and fungi. The present result indicate that stress response might be conserved in cofee plants, probably mediated by phosphorilation cascades. Moreover, our results point to further investigations of the signaling pathways as contribution to elucidate the plant-pathogen interaction phenomena.
Although the unquestionable agronomical importance of the coffee, particularly for Brazil, this culture is still a target for different stresses that cause losses in its productivity. The stress response in coffee plants to the different signals as pathogens and adverse environmental conditions is still unknown. The goal of the present work was to investigate CAFEST data bank in the context of protein kinases. Data in silico analysis disclosed 479 identified sequences as kinases that formed a set of 153 unigenes. The proteins expressed correspond to different and important categories of kinases (MAPK, MAPKK, MAPKKK, receptors, etc). The phylogenetic analysis showed the conservation of expressed proteins in cofee plants and other plants and fungi. The present result indicate that stress response might be conserved in cofee plants, probably mediated by phosphorilation cascades. Moreover, our results point to further investigations of the signaling pathways as contribution to elucidate the plant-pathogen interaction phenomena.
Descrição
Trabalho apresentado no Simpósio de Pesquisa dos Cafés do Brasil (5. : 2007 : Águas de Lindóia, SP). Anais. Brasília, D.F. : Embrapa Café, 2007.
Palavras-chave
MAPK Resposta celular EST, MAPK Cell response EST
Citação
Teixeira, Cristiane de Camargo; Silva, Alba C.; Albuquerque, Érika V.S.; Martins, Natália F. Análise in silico de proteínas quinases expressas em Coffea arabica. In: Simpósio de Pesquisa dos Cafés do Brasil (5. : Águas de Lindóia, SP : 2007). Anais. Brasília, D.F. : Embrapa - Café, 2007. (1 CD-ROM), 4p.