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001-es BibID:BIBFORM091525
035-os BibID:(scopus)85100002242 (wos)000612002300001
Első szerző:Alvarado, Diana
Cím:A Novel Insecticidal Spider Peptide that Affects the Mammalian Voltage-Gated Ion Channel hKv1.5 / Diana Alvarado, Samuel Cardoso-Arenas, Ligia-Luz Corrales-García, Herlinda Clement, Iván Arenas, Pavel Andrei Montero-Dominguez, Timoteo Olamendi-Portugal, Fernando Zamudio, Agota Csoti, Jesús Borrego, Gyorgy Panyi, Ferenc Papp, Gerardo Corzo
Dátum:2021
ISSN:1663-9812
Megjegyzések:Spider venoms include various peptide toxins that modify the ion currents, mainly of excitable insect cells. Consequently, scientific research on spider venoms has revealed a broad range of peptide toxins with different pharmacological properties, even for mammal species. In this work, thirty animal venoms were screened against hKv1.5, a potential target for atrial fibrillation therapy. The whole venom of the spider Oculicosa supermirabilis, which is also insecticidal to house crickets, caused voltage-gated potassium ion channel modulation in hKv1.5. Therefore, a peptide from the spider O. supermirabilis venom, named Osu1, was identified through HPLC reverse-phase fractionation. Osu1 displayed similar biological properties as the whole venom; so, the primary sequence of Osu1 was elucidated by both of N-terminal degradation and endoproteolytic cleavage. Based on its primary structure, a gene that codifies for Osu1 was constructed de novo from protein to DNA by reverse translation. A recombinant Osu1 was expressed using a pQE30 vector inside the E. coli SHuffle expression system. recombinant Osu1 had voltage-gated potassium ion channel modulation of human hKv1.5, and it was also as insecticidal as the native toxin. Due to its novel primary structure, and hypothesized disulfide pairing motif, Osu1 may represent a new family of spider toxins.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
atrial fibrillation
Kv1.5
Oculicosa supermirabilis
recombinant expression
spider venom
Megjelenés:Frontiers in Pharmacology. - 11 (2021), p. 1-13. -
További szerzők:Cardoso-Arenas, Samuel Corrales-García, Ligia-Luz Clement, Herlinda Arénas Iván Montero-Dominguez, Pavel Andrei Olamendi-Portugal, Timoteo Zamudio, Fernando Z. Csóti Ágota (1989-) (biológus) Borrego, Jesús Panyi György (1966-) (biofizikus) Papp Ferenc (1979-) (biofizikus) Corzo, Gerardo
Pályázati támogatás:K119417
OTKA
EFOP-3.6.1-16-2016-00022
EFOP
GINOP-2.3.2-15-2016-00015
GINOP
University of Debrecen, Faculty of Medicine, Bridging Fund
Egyéb
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