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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Graphic rendering of a ratiometric sensor (upper right pair). It is a combination of a bacterial protein (depicted red) that attracts heme and a fluorescent protein (depicted yellow). They could be analogous to a person holding a lamp while attracting hemes to block it's light. Lower left protein is an "internal standard" fluorescent protein, a type of experimental control.