The First Recombinant Viper Three-Finger Toxins: Inhibition of Muscle and Neuronal Nicotinic Acetylcholine Receptors


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

Genes encoding two three-finger toxins TFT-AF and TFT-VN, nucleotide sequences of which were earlier determined by cloning cDNA from venom glands of vipers Azemiops feae and Vipera nikolskii, respectively, were expressed for the first time in E. coli cells. The biological activity of these toxins was studied by electrophysiological techniques, calcium imaging, and radioligand analysis. It was shown for the first time that viper three-finger toxins are antagonists of nicotinic acetylcholine receptors of neuronal and muscle type.

About the authors

Ya. V. Makarova

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Author for correspondence.
Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

E. V. Kryukova

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

I. V. Shelukhina

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

D. S. Lebedev

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

T. V. Andreeva

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

D. Yu. Ryazantsev

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

S. V. Balandin

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

T. V. Ovchinnikova

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry; Sechenov First Moscow State Medical University

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997; Moscow, 119992

V. I. Tsetlin

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

Yu. N. Utkin

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: yanson1@yandex.ru
Russian Federation, Moscow, 117997

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2018 Pleiades Publishing, Ltd.