2022
Composition and toxicity of venom produced by araneophagous white-tailed spiders (Lamponidae: Lampona sp.)
MICHÁLEK, Ondřej; Andrew A. WALKER; Ondrej ŠEDO; Zbyněk ZDRÁHAL; Glenn F. KING et al.Základní údaje
Originální název
Composition and toxicity of venom produced by araneophagous white-tailed spiders (Lamponidae: Lampona sp.)
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Vydání
SCIENTIFIC REPORTS, ENGLAND, NATURE PORTFOLIO, 2022, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.600
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/22:00127725
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
white-tailed spiders; Prey-specialised spiders; spiders; Lampona
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 5. 3. 2026 09:30, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Prey-specialised spiders are adapted to capture specific prey items, including dangerous prey. The venoms of specialists are often prey-specific and less complex than those of generalists, but their venom composition has not been studied in detail. Here, we investigated the venom of the prey-specialised white-tailed spiders (Lamponidae: Lampona), which utilise specialised morphological and behavioural adaptations to capture spider prey. We analysed the venom composition using proteo-transcriptomics and taxon-specific toxicity using venom bioassays. Our analysis identified 208 putative toxin sequences, comprising 103 peptides < 10 kDa and 105 proteins > 10 kDa. Most peptides belonged to one of two families characterised by scaffolds containing eight or ten cysteine residues. Toxin-like proteins showed similarity to galectins, leucine-rich repeat proteins, trypsins and neprilysins. The venom of Lampona was shown to be more potent against the preferred spider prey than against alternative cricket prey. In contrast, the venom of a related generalist was similarly potent against both prey types. These data provide insights into the molecular adaptations of venoms produced by prey-specialised spiders.
Návaznosti
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