PUMA travels from the nucleus to the cytoplasm to free p53 from the grip of Bcl-xL, allowing p53 to trigger signaling on mitochondria that leads to cell death, according to St. Jude
Source: Eurekalert & othersLast reviewed: By John M. Grohol, Psy.D. on 21 Feb 2009
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I do not think there is any other quality so essential to success of any kind as the quality of perseverance. It overcomes almost everything, even nature.
-- John D. Rockefeller