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

Calciseptine (CaS) is a natural neurotoxin isolated from the black mamba Dendroaspis p. polylepis venom. This toxin consists of 60 amino acids with four disulfide bonds. Calciseptine specifically blocks L-type calcium channels, but not other voltage-dependent Ca2+ channels such as N-type and T-type channels. ==History== The Black Mamba (Dendroaspi...
Found on
http://en.wikipedia.org/wiki/Calciseptine

Polypeptide toxin (60 residues) from Dendroaspis polylepis . Specific blocker of some L-type calcium channels that will cause relaxation of smooth muscle and inhibition of cardiac muscle but has no effect on skeletal muscle.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.