Evidence map›Paper›PMID 41877378›Full record

ArticleJournal of insect science (Online)2026

Sequence and structure analysis for chemosensory proteins and odorant-binding proteins in Nilaparvata lugens (Hemiptera: Delphacidae).

Xiaoyi Dou, Russell Jurenka

Abstract read
In one paragraph

Article in Journal of insect science (Online), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

2 authors.

Xiaoyi DouDepartment of Entomology, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China.ORCID 0000-0003-2502-6154
Russell JurenkaDepartment of Plant Pathology, Entomology, Microbiology, Iowa State University, Ames, IA, USA.ORCID 0000-0002-5090-3203

Funding

National Natural Science Foundation of China 32500413
6 · The paper itself

Abstract

Chemosensation is crucial for insect behavior and physiology, involving several molecules. Chemosensory proteins (CSPs) and odorant-binding proteins (OBPs) transport volatile and lipophilic semiochemicals to activate the chemosensory system. Nilaparvata lugens Stål, is a monophagous pest of rice plants, causing significant economic losses worldwide. To date, 15 CSPs and 13 OBPs have been characterized, but their functions have not been fully investigated especially regarding their binding affinity with various ligands. This study compares the commonalities and differences between the 15 CSPs and 13 OBPs regarding sequence similarity, phylogeny, structural identity, and binding affinity with 3 different ligands. As expected, all 15 CSPs contain 4 conserved cysteine residues and 6 α-helical domains, whereas 13 OBPs have at least 6 cysteine residues and 6 α-helical domains. CSP1, 2, 8, and 14 cluster together in the phylogenetic tree, showing high structural similarity and similar binding affinity to the 3 ligands. OBP9 and 10 form a clade with high structural conservation; however, molecular docking indicates OBP9 exhibits a high binding affinity for the insecticide thiamethoxam. Three OBPs, OBP56d, OBPunknown1, and OBPunknown2 have been characterized and they display no significant preference for the 3 ligands. Overall, our integrated sequence and structural analysis reveals both functional redundancy and specific ligand preferences within the N. lugens chemosensory system. These findings provide a critical foundation for understanding the molecular basis of chemoreception in N. lugens and may inform the development of novel behavioral interference strategies.

Indexed as

HemipteraInsect ProteinsReceptors, OdorantAmino Acid SequenceAnimalsMolecular Docking SimulationPhylogenySequence AlignmentInsect Proteinsodorant-binding proteinReceptors, Odorantchemical receptionligandmolecular dockingstructural alignment

Identifiers

PMID41877378
PMCPMC13012876

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