Article
Energetic and structural interactions between delta-dendrotoxin and a voltage-gated potassium channel.
Journal of molecular biology - 10 Mar 2000
Imredy J P, MacKinnon R
Abstract excerpt
Dendrotoxin proteins isolated from Mamba snake venom block potassium channels with a high degree of specificity and selectivity. Using site-directed mutagenesis we have identified residues that constitute the functional interaction surfaces of delta-dendrotoxin and its voltage-gated potassium channel receptor. delta-Dendrotoxin uses a triangular patch formed by seven side-chains (Lys3, Tyr4, Lys6, Leu7, Pro8,...
Topics
- Amino Acid Sequence
- Amino Acid Substitution
- Animals
- Binding Sites
- Drosophila Proteins
- Drosophila melanogaster
- Elapid Venoms
- Electrophysiology
- Genetic Variation
- Ion Channel Gating
- Models, Molecular
