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Team:Cambridge/Bioluminescence/Bacterial Luciferases
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Revision as of 20:28, 3 August 2010
Bioluminescence: Bacterial Luciferases
Pathway
Bacterial lux operons emit light using five enzymes:
- luxA and luxB form the luciferase part of the system, they emit light using the substrate tetradecanal
- luxC, luxD and luxE are involved in the biosynthesis of tetradecanal from readily available substrates
Bioluminescence species
The Cambridge team is looking into these bacterial luciferases:
- Vibrio fischeri forms symbioses with squid to prevent the squid from casting a shadow on moonlit nights. Due to this their lux proteins are non-functional above 30 degrees
- Photorhabdus luminescens lives in the gut of nematodes. The purpose of its bioluminescence is not understood but its lux casette is widely used in reporters
- Vibrio (formerly Photobacterium) phosophoreum emits a very blue light, perhaps partly through its use of [http://partsregistry.org/Part:BBa_K216007 lumazine]
