Marine luciferase

Marine luciferase refers to a class of enzymes found in various marine organisms—such as copepods, shrimp, sea pansies (Renilla), and others—that catalyze the oxidation of light-emitting substrates (primarily coelenterazine) to produce bioluminescence[7][3][9][4]. These enzymes are not structurally conserved across all marine species; for instance, copepod luciferases are small, secreted proteins distinguished by their strong, stable blue light emission and minimal cofactor requirement (they do not require ATP, just oxygen and substrate)[7][3][9]. Marine luciferases have evolved multiple times in different lineages and typically show little sequence similarity to each other or to terrestrial luciferases (like firefly luciferase)[7][5][8]. Their principal biological roles in nature include predator evasion, prey attraction, and species communication through light emission[3][4]. In biotechnology, marine luciferases (notably Gaussia and Renilla luciferase) are extensively used as assay reporters due to their secreted nature, high sensitivity, and compatibility with live-cell or extracellular monitoring[7][9]. Marine luciferases are not considered therapeutic targets and are not associated with human pathologies; thus, there are no drugs designed to target them, but their substrates (like coelenterazine) are used in research. Overall, "marine luciferase" is a broad, functionally defined, but structurally diverse enzyme class, not a single standardized molecular entity.

Other names

marine luciferasescoelenterazine-dependent luciferasessecreted luciferasescopepod luciferaseRenilla luciferaseGaussia luciferaseMetridia luciferaseOplophorus luciferase

Catalyze the oxidation of luciferin substrate (e.g., coelenterazine) to produce visible light