Bioluminescence and CIEEL Mechanism.

Studies on the Mechanism of Bacterial Bioluminescence. Evidence Compatible with a One Electron Transfer Process and a Cieel Mechanism in the Luciferase Reaction

In the key step of bacterial bioluminescence a long chain aldehyde is oxidized to the corresponding fatty acid, with the concomitant generation of an excited state. This oxidation is carried out by a flavin-C(4a)-hydroperoxide, possibly over a flavin-C(4a)-peroxyhemiacetal [1,2]. The mechanism of the key step, the generation of the excited emitter, is still unclear. None of the several previous...

The Mechanism of Bioluminescence.

Mechanism and color modulation of fungal bioluminescence

Bioluminescent fungi are spread throughout the globe, but details on their mechanism of light emission are still scarce. Usually, the process involves three key components: an oxidizable luciferin substrate, a luciferase enzyme, and a light emitter, typically oxidized luciferin, and called oxyluciferin. We report the structure of fungal oxyluciferin, investigate the mechanism of fungal biolumin...

Bioluminescence: mechanism and mode of control of scintillon activity.

Subcellular particles, termed scintillons, isolated from the luminescent dinoflagellate Gonyaulax, emit light when the pH is lowered from 8 to 5.7. The capacity to emit a second flash is regained by incubation of scintillons with the low molecular weight luciferin from Gonyaulax. This compound was previously demonstrated to be the substrate in the bioluminescent reaction catalyzed by a soluble ...

Bioluminescence in Vibrio spp.: A Mechanism for Redox Homeostasis?

Cells rely intimately on dinucleotide cofactors for metabolism. Various metabolic pathways elicited under certain environmental conditions may shift the redox balance of dinucleotide pools, necessitating mechanisms to restore balance. Bioluminescence in Vibrio species oxides NADH and NADPH, generating NAD+ and NADP+ for metabolism. This study aimed to test if bioluminescence maintains redox hom...