The Oxus cobra contains what kind of ions for their venom to be active?
Ribonuclease V1 Ribonuclease V1 (RNase V1) is a ribonuclease enzyme found in the venom of the Caspian cobra ("Naja oxiana"). It cleaves double-stranded RNA in a non-sequence-specific manner, usually requiring a substrate of at least six stacked nucleotides. Like many ribonucleases, the enzyme requires the presence of magnesium ions for activity.
California mountain kingsnake Lampropeltis zonata, or the California mountain kingsnake, is a species of nonvenomous colubrid snake, which is endemic to North America. It is a coral snake mimic, having a similar pattern consisting of red, black, and yellow on its body, but the snake is completely harmless. Five subspecies are recognized in the U.S., including the nominotypical subspecies, with two subspecies recognized in Mexico.