<prompt> Which of the following is known as Panton-Valentine toxinLeucocidin of Staphylococcus aureusAlpha toxin of Clostridium perferingensDNAase of Staphylococcus pyogenesNone of the above  <response>: Panton-valentine leucocidin called PVL is a two-component toxin, like gamma lysin, being composed of the S and F components. Such bicomponent, membrane-active toxins have been grouped as synergohymenotropic toxins. Ref: Textbook of Ananthanarayan and panikers; 10th Edition; Pg:204 