Leukocidins

**Definition:** Pore forming proteins originally discovered for toxic activity to LEUKOCYTES. They are EXOTOXINS produced by some pathogenic STAPHYLOCOCCUS and STREPTOCOCCUS that destroy leukocytes by lysis of the cytoplasmic granules and are partially responsible for the pathogenicity of the organisms.

**Tree numbers:** - D12.776.543.695.750

**Synonyms:** - Leukocidin Proteins