Best Image Today

Here is today's scientific image:

This delicate, fluffy object is a cytoskeleton viewed under a fluorescence confocal microscope. Below is a time-lape video of the process. For an explanation of why the cell's actin fibers twist around into this shape, go to our website.

[embed]https://www.youtube.com/watch?v=iLm0Ojngjc4[/embed]

Indeed, all three of today's new articles involve crucial cellular dynamics: cutting up unfolded proteins with pared-down molecular "scissors" and binding to metal ions in proteins. In other words, within that lovely shell-like cytoskeleton, the cell is quite a busy place, with loads of activities still to explore. Have fun!