perforin

https://doi.org/10.1351/goldbook.13549
Molecule produced by cytotoxic T cells and natural killer (NK) cells that, like complement component C9, polymerizes to form a pore in the membrane of the target cell leading to cell death.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1226 [Terms] [Paper]