Results 201 to 210 of about 288,820 (252)
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Scorpion toxin: Specific binding to rat synaptosomes
Biochemical and Biophysical Research Communications, 1978Summary The protein neurotoxin II from the venom of the scorpion Androctonus australis Hector was labeled with 125I by the lactoperoxidase method to a specific radioactivity of about 100 μCi/μg without loss of biological activity. The labeled neurotoxin binds specifically to a single class of non interacting binding sites of high affinity (KD = 0 ...
E, Jover +3 more
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2010
In deep review on the pharmacology and toxicology of scorpion toxin Lqh3.
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In deep review on the pharmacology and toxicology of scorpion toxin Lqh3.
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Immunological Properties of Scorpion Toxins
2000Early studies on scorpion venom were motivated by the problems of treating envenomation in various parts of the world (Goyffon et al.,1982; Freire-Maia et al.,1994; Dehesa-Davila et al., 1994). Over the last 30 years, there has been extensive work by our groups and others to elucidate the mechanism of envenomation and to fight against the noxious ...
Christiane Devaux, Mohamed El Ayeb
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Scorpion Toxins and Potassium Channels
2000Potassium channels are a group of proteins that have in common the property of selectively allowing the movement of K+ through aqueous pores in the membrane. Gating of these proteins occurs through conformational changes that are controlled by voltage and/or ligand binding.
Maria L. Garcia +4 more
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Les toxines des venins de scorpion
Annales de l'Institut Pasteur / Actualités, 1999Les toxines de venins de scorpion sont des mini-proteines basiques, de 60–70 residus d'acides amines, possedant quatre ponts disulfure dans le cas des toxines modulant les canaux Na+ voltage-dependants des cellules excitables, et de 30–40 residus, avec trois ou quatre ponts disulfure, pour les toxines bloquant divers canaux K+.
Marie-France Martin-Eauclaire +3 more
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Binding of .beta.-scorpion toxin: a physicochemical study
Biochemistry, 1984The binding to rat brain synaptosomes of a beta-scorpion toxin, i.e., toxin II of Centruroides suffusus suffusus (Css II), was studied as a function of pH, temperature, and concentration of some monovalent and divalent cations. At 10 degrees C and pH 6.0, the specific binding of 125I-labeled Css II corresponds to a single class of noninteracting high ...
E, Jover, J, Bablito, F, Couraud
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[The rational evolution of scorpion toxins].
Bioorganicheskaia khimiia, 1997A theoretical method for the rational design of a "universal" scorpion toxin with a wider spectrum of specificity for K+ channels and a more stable alpha/beta-folding than in its natural homologues is described. On the basis of the analysis of molecular hydrophobic potentials (MHP) of the protein spatial structures, structural features for a family of ...
Zharavin , V.A. +2 more
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Tityus serrulatus Scorpion Venom and Toxins: An Overview
Protein & Peptide Letters, 2009Tityus serrulatus is considered the most dangerous scorpion in South America and responsible for most of the fatal cases. This review will focus on Tityus serrulatus scorpion venom (Tsv), its long-chain Na(+)-channel toxins (NaTx), which include alpha- and beta-neurotoxins, short-chain K(+)-channel toxins (KTx), hyaluronidase, proteases and other ...
Cologna, Camila T. +4 more
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Florescent scorpion toxin lights up tumours
New Scientist, 2007The new “paint” allows surgeons to accurately pinpoint the edges of a tumour during surgery to remove all cancerous ...
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Biology and evolution of bacterial toxin–antitoxin systems
Nature Reviews Microbiology, 2022Dukas Jurenas +2 more
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