| When the pH drops, luciferase changes its shape, allowing luciferin, more specifically tetrapyrrole, to bind. |
| A firefly's light is produced by a chemical reaction involving a special protein, a pigment called luciferin, and oxygen. |
| Luc activity was assayed quantitatively with a liquid scintillator using the photon-counting mode after the feeding of luciferin as substrate. |
| Nearly all of this light is produced by the oxidization of the molecule luciferin, a reaction catalyzed by the enzyme luciferase. |
| The firefly's chemical secret is a combination of air, water, and two diffusible thermostable compounds named luciferin and luciferase. |
| These brief flashes take place inside a cell when an enzyme called luciferase encounters the compound known as luciferin. |
