1. Not so Nice Enzymes

2. Rattlesnake Venom – an enzyme cocktail
Phospholipases – dissolve cell membranes
Proteases – cause clotting

3. Bacteria’s Enzyme Arsenal
Leukocidinases – destroy WBCs
Hemolysinases – destroy RBCs
Coagulases – cause clotting
Streptokinases – dissolve blood clots
Hyaluronidase – dissolves glue betweeen cells
Collagenase – breaks down connective tissue

4. Poison Plant Enzyme - Ricin
Found in Castor beans
Enters cells – converted to enzyme
Inactivates ribosomes
Popular plot device – “The Interview”

5. . . . . . and there’s always Anthrax
Two enzymes and an attachment protein
Disrupts cell’s internal balance
Disrupts cell signals
Drives cells to apoptosis