fragmentin-3 |
fragmentocytes |
crinkled |
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Fragmentin has been purified by Shi et al (1992) from a rat natural killer large granular lymphocyte leukemia as a 32 kDa granule protein that induces rapid DNA fragmentation and cell death by apoptosis. Fragmentin is highly homologous to the NK-cell and T-cell granule serine proteases RNK protease 1 and mouse granzyme B. and probably acts as the molecular mediator of NK-cell mediated DNA fragmentation and apoptosis.
Shi et al (1992) have purified two additional proteases with
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