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GFP In Microbiology
by AKG (elevens_curse)
at October 12th, 2008 (10:23 pm)

Sticking to the GFP theme, I found a great little movie of a bacterium called Listeria that's pathogenic to humans. When it manages to get into a host cell, it uses the cell's cytoskeleton (actin, specifically) to propel itself around and into other cells.
So in this movie, they tagged actin with GFP. Though this isn't color fluorescence, you see GFP emission as bright light, so Listeria actually looks like a comet with a long bright tail of actin that it uses to push itself around the cell.


http://cmgm.stanford.edu/theriot/a10cells.mov

lots of other cool movies at the source: http://cmgm.stanford.edu/theriot/movies.htm