
1) Ion channel toxin
Found on
https://www.crosswordclues.com/clue/iberiotoxin

Iberiotoxin (IbTX) is an ion channel toxin purified from the Eastern Indian red scorpion Buthus tamulus. Iberiotoxin selectively inhibits the current through large-conductance calcium-activated potassium channels. == Chemistry == Iberiotoxin is a 37-amino acid peptide. The formula is C179H274N50O55S7. It is also known as `Potassium channel toxin ....
Found on
http://en.wikipedia.org/wiki/Iberiotoxin

Peptide toxin (37 residues) from the scorpion Leiurus quinquestriatus var hebraeus that is selective for the high-conductance calcium-activated K+ channel. Similar (and highly homologous in sequence) to charybdotoxin but more selective.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.