KP4 (original) (raw)

KP4, Kp4 or kp4 may refer to * Killer toxin Kp4 family, a family of killer toxins, which includes the Kp4 killer toxin from the smut fungus Ustilago maydis * KP4, an amateur radio call sign assigned to operators in Puerto Rico, see Amateur radio licensing in the United States#Call signs