Journal
PHOTOCHEMISTRY AND PHOTOBIOLOGY
Volume 86, Issue 5, Pages 1046-1049Publisher
WILEY
DOI: 10.1111/j.1751-1097.2010.00777.x
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Funding
- Japanese Society for the Promotion of Science [21510238]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP, Brazil)
- Grants-in-Aid for Scientific Research [21510238] Funding Source: KAKEN
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Quantum yields of firefly bioluminescence reactions were determined for beetle luciferases from the three main families of luminous beetles emitting different bioluminescence colors. Quantum yield (QY) was significantly correlated with luminescence spectrum. The green light-emitting luciferase of the Brazilian click beetle, Pyrearinus termitilluminans, whose luminescence spectrum had the shortest peak wavelength of all the luciferases investigated, had the highest QY (0.61). Mutant analyses of active site-substituted Pyrocoelia miyako luciferases showed that, although k(cat) was decreased by the mutations, the QY was not significantly affected.
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