Proteomics

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Characterization of Simulium damnosum salivary antigens


ABSTRACT: Simulium damnosum sensu lato (s.l.) blackflies transmit Onchocerca volvulus, a filarial nematode that causes human onchocerciasis. Human landing catches (HLCs) is currently the sole method used to estimate blackfly biting rates but is labour-intensive and questionable on ethical grounds. A potential alternative is to measure host antibodies to vector saliva deposited during bloodfeeding. In this study, the salivary proteome of S. damnosum s.l. was investigated. Blackflies were collected in Ghana by HLCs and dissected to extract their salivary glands. Salivary proteins were separated by gel-electrophoresis, and antigenic proteins visualized by immunoblot. Liquid chromatography mass spectrometry (LC–MS/MS) was performed to characterize the proteome of S. damnosum s.l. salivary glands. Several antigenic proteins were recognized, with the major ones located around 15 and 40 kDa. LC–MS/MS identified the presence of antigen 5-related protein, apyrase/nucleotidase, and hyaluronidase.

INSTRUMENT(S): Orbitrap Fusion

ORGANISM(S): Simulium Damnosum S.l. Me1

TISSUE(S): Saliva

SUBMITTER: Laura Willen  

LAB HEAD: Petr Volf

PROVIDER: PXD025869 | Pride | 2021-06-11

REPOSITORIES: Pride

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