Identification of microsporidia host-exposed proteins reveals a repertoire of rapidly evolving proteins.
Nat Commun
; 8: 14023, 2017 01 09.
Article
em En
| MEDLINE
| ID: mdl-28067236
ABSTRACT
Pathogens use a variety of secreted and surface proteins to interact with and manipulate their hosts, but a systematic approach for identifying such proteins has been lacking. To identify these 'host-exposed' proteins, we used spatially restricted enzymatic tagging followed by mass spectrometry analysis of Caenorhabditis elegans infected with two species of Nematocida microsporidia. We identified 82 microsporidia proteins inside of intestinal cells, including several pathogen proteins in the nucleus. These microsporidia proteins are enriched in targeting signals, are rapidly evolving and belong to large Nematocida-specific gene families. We also find that large, species-specific families are common throughout microsporidia species. Our data suggest that the use of a large number of rapidly evolving species-specific proteins represents a common strategy for microsporidia to interact with their hosts. The unbiased method described here for identifying potential pathogen effectors represents a powerful approach to study a broad range of pathogens.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Proteínas Fúngicas
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Microsporídios
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Caenorhabditis elegans
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Células Epiteliais
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Interações Hospedeiro-Patógeno
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article