What look like yellow-green flames show a mitochondrion (blue) in its death throes. Its red-soaked neighbors are already dead. The image comes from research on programmed cell death, or apoptosis, revealing that two proteins, Reaper and Hid (green), join together and travel to mitochondria, the cell's power plants. There, they trigger the release of cytochrome c (red), which in turn activates a fatal chain reaction. The yellow areas show the chromatic mix of the Reaper-Hid complex and cytochrome c. Read
Featured in the November 17, 2010, issue of Biomedical Beat.