Dataset Information

Ochlerotatus triseriatus saliva proteome

ABSTRACT: Over the last 20 years, the advances in sequencing technologies highlighted the unique composition of the salivary glands of blood-feeding arthropods. Further biochemical and structural data demonstrated that salivary proteins can disrupt host hemostasis, inflammation and immune response in addition to favor pathogen transmission. Previously, a Sanger-based sialome of the adult Ochlerotatus. triseriatus female salivary glands was published based on 731 ESTs. Here we revisited O. triseriatus salivary glands contents using an Illumina-sequencing approach of both male and female tissues. In the current data set we report 10,317 coding DNA sequences classified into several functional classes. The translated transcripts also served as reference database for the proteomic analysis of O. triseriatus female saliva, in which unique peptides of 101 proteins were found. Finally, comparison of male and female libraries allowed the identification of female-enriched transcripts that are potentially related to blood acquisition and virus transmission.

INSTRUMENT(S): Orbitrap Fusion

ORGANISM(S): Ochlerotatus Triseriatus

TISSUE(S): Saliva

SUBMITTER: Stephen Lu

LAB HEAD: Eric Calvo

PROVIDER: PXD033588 | Pride | 2022-10-15

REPOSITORIES: Pride

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A deeper insight into the sialome of male and female Ochlerotatus triseriatus mosquitoes.

Lu Stephen S Martin-Martin Ines I Ribeiro Jose M JM Calvo Eric E

Insect biochemistry and molecular biology 20220701

Over the last 20 years, advancements in sequencing technologies have highlighted the unique composition of the salivary glands of blood-feeding arthropods. Further biochemical and structural data demonstrated that salivary proteins can disrupt host hemostasis, inflammation and immunity, which favors pathogen transmission. Previously, a Sanger-based sialome of adult Ochlerotatus triseriatus female salivary glands was published based on 731 expressed sequence tag (ESTs). Here, we revisited O. tris ...[more]

PMID: 35787945

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Project description:Background: Anopheles culicifacies is a rural vector of malaria in tropical and sub tropical South East Asian region. The salivary gland of the mosquito is the target for sporozoite interaction, blood feeding behavior, haemostasis and vector-parasite interactions. Malaria parasite matures inside the salivary gland, gain competence and transmitted to the host along with the saliva during biting. The importance of the proteins expressed in salivary gland is the first step in understanding the physiology of blood feeding and may provide insights into vector- parasite interactions. Since, no genomic or transcriptomics information is available of Anopheles culicifacies, therefore locally expressed functional proteins in salivary glands are of much importance. . Method: In this study, 1DE protein and in solution digestion was combined with tandem mass spectrometry (nano LC-MS/MS) and computational bioinformatics for data mining was employed to study the proteome profile of salivary glands of sugar fed An. culicifacies mosquito species. Functional annotation of all the identified proteins was carried out using gene ontology tools, CELLO and SMART analysis software. Results: Total 102 proteins were identified and analysed by SEQUEST algorithm against mosquito protein database from Uniprot/NCBI. Out of which 81 proteins were identified using gel free approach and 21 proteins using in-gel approach and 15 were common among these two approaches. All the identified proteins were categorized in to 23 groups of biological processes using GO tool. 7 proteins were depicted to be secretary in nature by investigating the signal peptide present. Potential proteins with unknown function were predicted by analyzing their functional association with other characterized proteins by STRING algorithm and were categorized in cell adhesion, cytoskeleton and membrane trafficking networks. Conclusion: Our study elucidates the first proteomic dataset of An. culicifacies salivary gland proteins. Functional annotation of salivary proteins and complementary gene ontology assignments in An. culicifacies species may contribute towards understanding the complex physiology of the tissues in this species. This proteome baseline data may facilitate the discernment of salivary glands and parasite correlation during blood feeding. Furthermore, this mass spectrometry based proteomic data may also provide insights into the elucidation of role of differential functional proteins present in refractory An. culicifacies mosquito and may be useful for development of effective malaria control strategies.

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