This family consists of the calcine family of scorpion toxins. The calcine family consists of Maurocalcine and Imperatoxin. These toxins have been shown to be potent effector of ryanodyne-sensitive calcium channel from skeletal muscles. These toxins are thus useful for dihydropyridine receptor/ryanodyne receptor interaction studies.
Jiyao W et al.(2023). "The conserved domain database in 2023.",