| Texto completo | |
| Autor(es): |
Madeira, Luciana
[1]
;
Galante, Pedro A. F.
[2, 3]
;
Budu, Alexandre
[4]
;
Azevedo, Mauro F.
[4]
;
Malnic, Bettina
[3]
;
Garcia, Celia R. S.
[4]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Inst Ciencias Biomed, Dept Parasitol, Sao Paulo - Brazil
[2] Ludwig Inst Canc Res, Sao Paulo - Brazil
[3] Univ Sao Paulo, Inst Quimi, Dept Bioquim, Sao Paulo - Brazil
[4] Univ Sao Paulo, Inst Bioci, Dept Fisiol, BR-05508 Sao Paulo - Brazil
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PLoS One; v. 3, n. 3 Mar. 2008. |
| Área do conhecimento: | Ciências Biológicas - Fisiologia |
| Notas: | Revista de acesso livre, artigo número e1889 |
| Citações Web of Science: | 24 |
| Assunto(s): | Fisiologia Genomas Doenças parasitárias Malária Proteínas de protozoários Plasmodium falciparum Receptores de superfície celular |
| Resumo | |
Serpentine receptors comprise a large family of membrane receptors distributed over diverse organisms, such as bacteria, fungi, plants and all metazoans. However, the presence of serpentine receptors in protozoan parasites is largely unknown so far. In the present study we performed a genome-wide search for proteins containing seven transmembrane domains (7-TM) in the human malaria parasite Plasmodium falciparum and identified four serpentine receptor-like proteins. These proteins, denoted PfSR1, PfSR10, PfSR12 and PfSR25, show membrane topologies that resemble those exhibited by members belonging to different families of serpentine receptors. Expression of the pfsrs genes was detected by Real Time PCR in P. falciparum intraerythrocytic stages, indicating that they potentially code for functional proteins. We also found corresponding homologues for the PfSRs in five other Plasmodium species, two primate and three rodent parasites. PfSR10 and 25 are the most conserved receptors among the different species, while PfSR1 and 12 are more divergent. Interestingly, we found that PfSR10 and PfSR12 possess similarity to orphan serpentine receptors of other organisms. The identification of potential parasite membrane receptors raises a new perspective for essential aspects of malaria parasite host cell infection. (AU) | |
| Processo FAPESP: | 07/52924-0 - Genômica funcional em Plasmodium |
| Beneficiário: | Célia Regina da Silva Garcia |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |