
Les venins de scorpion contiennent un grand nombre de neurotoxines peptidiques qui constituent un ensemble de familles moléculaires à haut degré de polymorphisme, mais qui ont en commun une architecture semblable. Cette architecture se retrouve dans des peptides antibactériens circulants de la famille des défensines, qui s'apparentent tout particulièrement à celle des neurotoxines actives sur les canaux potas sium. Cette diversification de fonctions à partir d'un schéma structurel identique est discutée à la lumière des caractéristiques biophysiologiques des scorpions.
The scorpion venoms possess many neurotoxic peptides which constitute a group of molecular families with a common architecture and a high degree of polymorphism. This architecture is found also in circulating antimicrobial peptides belonging to the defensins family, which are especially structurally related to the blocking potassium channels neurotoxins. The diversification in functions with a unique architectural scheme is discussed taking in account the biophysiological characteristics of the scorpion order.
[SDV] Life Sciences [q-bio], Defensins, Scorpions, Anti-Infective Agents, Neurotoxins, Animals, Scorpion Venoms, Blood Proteins
[SDV] Life Sciences [q-bio], Defensins, Scorpions, Anti-Infective Agents, Neurotoxins, Animals, Scorpion Venoms, Blood Proteins
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