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

Chlorotoxin is a 36-amino acid peptide found in the venom of the deathstalker scorpion (Leiurus quinquestriatus) which blocks small-conductance chloride channels. The fact that chlorotoxin binds preferentially to glioma cells has allowed the development of new methods, that still are under investigation, for the treatment and diagnosis of several ...
Found on
http://en.wikipedia.org/wiki/Chlorotoxin

A substance being studied in the diagnosis and treatment of glioma (a type of brain cancer) and other types of cancer. It binds to cancer cells in the brain and peripheral nervous system and may keep them from spreading. Chlorotoxin comes from the venom of a type of scorpion. A form of chlorotoxin made in the laboratory is called TM-601. Chlorotoxi...
Found on
http://www.cancer.gov/dictionary?expand=C
No exact match found.