Potassium channels: from scorpion venoms to high-resolution structure

ML Garcia, YD Gao, OB McManus, GJ Kaczorowski - Toxicon, 2001 - Elsevier
… Clearly, scorpion toxins have played important, crucial roles in determining potassium
channel structure and function. In this review, we will discuss how work with scorpion venom …

Diverse structural features of potassium channels characterized by scorpion toxins as molecular probes

Y Zhao, Z Chen, Z Cao, W Li, Y Wu - Molecules, 2019 - mdpi.com
… state with remarkable effects on toxin binding. In this … of potassium channels explored using
scorpion toxin tools and discuss future work in the field of scorpion toxin-potassium channel

Solution structure of maurotoxin, a scorpion toxin from Scorpio maurus, with high affinity for voltage‐gated potassium channels

E Blanc, JM Sabatier, R Kharrat… - Proteins: Structure …, 1997 - Wiley Online Library
… Kv1.2, than on Kv1.1 and Kv1.3 potassium channels. However, we can speculate that the
specificity of scorpion toxins is driven by the overall distribution of ionisable side chains. This …

Three-dimensional structure of scorpion toxins: Towards a new model of interaction with potassium channels

H Darbon, E Blanc, JM Sabatier - Perspectives in drug discovery and …, 1999 - Springer
… ion-channels, responsible for either sodium, potassium, … of scorpion toxins specific for
potassium channels, and on their structure–activity relationships. The overall fold of all these toxins

Kalium: a database of potassium channel toxins from scorpion venom

AI Kuzmenkov, NA Krylov, AO Chugunov, EV Grishin… - Database, 2016 - academic.oup.com
… venom: out of ∼400 polypeptide ligands found in UniProt, 250 are scorpion toxins ( 12 ).
All known scorpion toxins affecting potassium channels (KTx) are peptides that act as channel

Transfer of the scorpion toxin receptor to an insensitive potassium channel

A Gross, T Abramson, R MacKinnon - Neuron, 1994 - cell.com
potassium channels. CIur results indicatethatthis region isprobablytheonlypartoftheion channel
that directly contacts bound scorpion toxins. … toxin-sensitive to a tolxin-insensitive channel

Generating a high affinity scorpion toxin receptor in KcsA-Kv1. 3 chimeric potassium channels

C Legros, V Pollmann, HG Knaus, AM Farrell… - Journal of Biological …, 2000 - ASBMB
… ) and eukaryotic Kv channels, we explored possibilities of transferring the scorpion toxin
receptor site of human (h)Kv1.3 channels to the toxin-insensitive KcsA channels. Accordingly, …

Hemitoxin, the first potassium channel toxin from the venom of the Iranian scorpion Hemiscorpius lepturus

N Srairi‐Abid, D Shahbazzadeh, I Chatti… - The FEBS …, 2008 - Wiley Online Library
… K + channel toxins, … of scorpion toxins. The pairing of its disulfide bridges, deduced from
MS of trypsin-digested peptide, is similar to that of classical four disulfide bridged scorpion toxins

Molecular diversity and functional evolution of scorpion potassium channel toxins

S Zhu, S Peigneur, B Gao, L Luo, D Jin, Y Zhao… - Molecular & Cellular …, 2011 - ASBMB
Scorpion toxins affecting K + channels (KTxs) represent important pharmacological tools …
Here, we report molecular characterization of seven new KTxs in the scorpion Mesobuthus …

Molecular divergence of two orthologous scorpion toxins affecting potassium channels

B Gao, S Peigneur, J Dalziel, J Tytgat, S Zhu - … Biochemistry and Physiology …, 2011 - Elsevier
… , from venom of the scorpion Mesobuthus eupeus. MeuTx3B … large conductance
calcium-activated potassium channels (BK), … inhibits human voltage-gated potassium channel