Dataset Information

Venom proteomics of the Amazonian spider Acanthoscurria juruenicola

ABSTRACT: Acanthoscurria juruenicola is an Amazonian tarantula spider described for the first time a century ago. Specimens of both genders are similar in size and in most morphological aspects, but ecological behavior and their venom composition remained unknown to date. Here we present the trascriptomics, proteomics and peptidomics characterization of the spider venom by a combination of mass spectrometric analysis of both native and digested peptides, venom gland transcriptomics and bioinformatics.

INSTRUMENT(S): LTQ Orbitrap Velos, Synapt G2 HDMS

ORGANISM(S): Acanthoscurria Juruenicola

SUBMITTER: Alexandre Keiji Tashima

PROVIDER: MSV000087777 | MassIVE | Thu Jul 08 11:07:00 BST 2021

REPOSITORIES: MassIVE

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Publications

Multiomics Profiling of Toxins in the Venom of the Amazonian Spider Acanthoscurria juruenicola.

Nishiduka Erika S ES Abreu Thiago F TF Abukawa Fernanda Midori FM Oliveira Ursula C UC Tardivo Caio E O CEO Nascimento Soraia M SM Meissner Gabriel O GO Chaim Olga M OM Juliano Maria A MA Kitano Eduardo S ES Zelanis André A Serrano Solange M T SMT da Silva Pedro I PI Junqueira-de-Azevedo Inácio L IL Nishiyama-Jr Milton Y MY Tashima Alexandre K AK

Journal of proteome research 20221019 11

Acanthoscurria juruenicola is an Amazonian spider described for the first time almost a century ago. However, little is known about their venom composition. Here, we present a multiomics characterization of A. juruenicola venom by a combination of transcriptomics, proteomics, and peptidomics approaches. Transcriptomics of female venom glands resulted in 93,979 unique assembled mRNA transcript encoding proteins. A total of 92 proteins were identified in the venom by mass spectrometr ...[more]

PMID: 36260604

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Project description:Background The generalist dipteran pupal parasitoid Nasonia vitripennis injects 79 venom peptides into the host before egg laying. This venom induces several important changes in the host, including developmental arrest, immunosuppression, and alterations to normal metabolism. It is hoped that diverse and potent bioactivities of N. vitripennis venom provide an opportunity for the design of novel acting drugs. However, currently very little is known about the individual functions of N. vitripennis venom peptides and less than half can be bioinformatically annotated. The paucity of annotation information complicates the design of studies that seek to better understand the potential mechanisms underlying the envenomation response. Although the RNA interference system of N. vitripennis provides an opportunity to functionally characterise venom encoding genes, with 79 candidates this represents a daunting task. For this reason we were interested in determining the expression levels of venom encoding genes in the venom gland, such that this information could be used to rank candidate venoms. To do this we carried out deep sequencing of the transcriptome of the venom gland and neighbouring ovary tissue and used RNA-seq to measure expression from the 79 venom encoding genes. The generation of a specific venom gland transcriptome dataset also provides further opportunities to investigate novel features of this highly specialised organ. Results High throughput sequencing and RNA-seq revealed that the highest expressed venom encoding gene in the venom gland was a serine protease called Nasvi2EG007167, which has previously been implicated in the apoptotic activity of N. vitripennis venom. As expected the RNA-seq confirmed that the N. vitripennis venom encoding genes are almost exclusively expressed in the venom gland relative to the neighbouring ovary tissue. Novel peptides appear to perform key roles in N. vitripennis venom function as only four of the highest 15 expressed venom encoding genes are bioinformatically annotationed. The high throughput sequencing data also provided evidence for the existence of an additional 471 novel genes in the Nasonia genome that are expressed in the venom gland and ovary. Finally, metagenomic analysis of venom gland transcripts identified viral transcripts that may play an important part in the N. vitripennis venom function. Conclusions The expression level information provided here for the 79 venom encoding genes provides an unbiased dataset that can be used by the N. vitripennis community to identify high value candidates for further functional characterisation. These candidates represent bioactive peptides that have value in drug development pipelines.

Dataset Information

Venom proteomics of the Amazonian spider Acanthoscurria juruenicola

Dataset's files

Publications

Multiomics Profiling of Toxins in the Venom of the Amazonian Spider <i>Acanthoscurria juruenicola</i>.

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