ArticleInternational journal for parasitology2017
Functional genomic exploration reveals that Ss-RIOK-1 is essential for the development and survival of Strongyloides stercoralis larvae.
Article in International journal for parasitology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 10 citations in OpenAlex.
- Domain definition and preliminary functional exploration of the endonuclease NOBP-1 in Strongyloides stercoralis.Parasites & vectors · 2023Article
- Establishment of an Animal Model Scheme ofPathogens (Basel, Switzerland) · 2023Article
- First Evidence of Function forPathogens (Basel, Switzerland) · 2021Article
- Advances in the Molecular and Cellular Biology ofCurrent tropical medicine reports · 2019Article
- CRISPR/Cas9 Mutagenesis and Expression of Dominant Mutant Transgenes as Functional Genomic Approaches in Parasitic Nematodes.Frontiers in genetics · 2019Review
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Authors and funding
11 authors at 3 institutions in 3 countries.
Funding
Abstract
Protein kinase RIOK-1 is a non-ribosomal factor essential for rRNA cleavage and ribosome small subunit maturation. It is encoded in all eukaryotic organisms. The RIOK-1 encoding gene of Caenorhabditis elegans (Ce-riok-1) is expressed in the neuronal and reproductive systems in larvae and adults of this free-living nematode, and it supports larval growth and development of the adult gonad. In spite of its recognised roles in model organisms such as C. elegans, little is known about the function of this molecule in parasitic nematodes. In a previous study, we characterised the structure, transcriptional profiles and in vivo transcriptional expression patterns of the Ss-riok-1 of human and canine parasitic nematode Strongyloides stercoralis. Here, we extend previous work to undertake functional studies, using transgenesis to assess the roles of Ss-RIOK-1 in the development of S. stercoralis. The results revealed that recombinant Ss-RIOK-1 with D282A mutation at its catalytic site lost its kinase phosphorylation activity in vitro. Both wild-type and mutant Ss-RIOK-1s were expressed in the cytoplasm of neurons and some hypodermal cells in the wild-type strain (UPD) of S. stercoralis. Larvae expressing the dominant negative mutant Ss-RIOK-1 that lost the catalytic activity had a decreased mobility and a severe defect in development to the infective L3 stage. Our findings demonstrated that Ss-RIOK-1 is essential for the development and survival of free-living larvae of S. stercoralis, and that catalytic activity is essential for its function in the parasitic nematode.
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