a protein present in blood serum and active in the destruction of bacteria and the neutralization of viruses
Origin of properdinfrom pro(tein) + Classical Latin perdere, to destroy + -in
A protein in blood serum that is a component of the innate immune system, acting as a positive regulator of the alternative pathway of the complement system.
Origin of properdinProbably pro- 1Latin perdere to destroy ; see perdition. -in