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Published online 26 October 1999 | Nature | doi:10.1038/news991028-6

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Pocketing the difference

The discovery of the green fluorescent protein, otherwise known as ‘GFP’, from the Aequorea jellyfish has revolutionized research into the basic biology of cells. The ability of GFP to form a fluorescent light-absorbing mass in the absence of any additional factors, has spurred an extremely wide appliance of GFP as a genetically encoded marker and biosensor.

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