perforins
Perforins 1 and 2 form tubular transmembrane complexes (16nm diameter) at the sites of target cell lysis by NK cells and cytotoxic T-cells.

Dictionary of molecular biology. 2004.

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  • immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… …   Universalium

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