Any feedback?
Please rate this page
(all_enzymes.php)
(0/150)

BRENDA support

1.13.12.7: firefly luciferase

This is an abbreviated version!
For detailed information about firefly luciferase, go to the full flat file.

Word Map on EC 1.13.12.7

Reaction

D-firefly luciferin
+
O2
+
ATP
=
firefly oxyluciferin
+
CO2
+
AMP
+
diphosphate
+
hnu

Synonyms

AL1, AL2, beetle luciferase, CBG99luc, CBRluc, FFL, firefly luciferase, firefly luciferin luciferase, fluc, LpLuc1, LpLuc2, Luc, Luc1, Luc1-type luciferase, Luc2, Luc2-type luciferase, luciferase, luciferase (firefly luciferin), luciferase FM, luciferin, Luciola italica luciferase, lucPpe, lucPpy, orange light-producing luciferase, oxygen 4-oxidoreductase, PC3-Luc, Photinus luciferin 4-monooxygenase (ATP-hydrolyzing), Photinus pyralis luciferase, PML, PpLase, Ppy, Ppy GR-TS, Ppy RE-TS, PpyWT, PsntWT

ECTree

     1 Oxidoreductases
         1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
             1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases)
                1.13.12.7 firefly luciferase

Systematic Name

Systematic Name on EC 1.13.12.7 - firefly luciferase

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
SYSTEMATIC NAME
IUBMB Comments
D-firefly luciferin:oxygen 4-oxidoreductase (decarboxylating, ATP-hydrolysing)
The enzyme, which is found in fireflies (Lampyridae), is responsible for their biolouminescence. The reaction begins with the formation of an acid anhydride between the carboxylic group of D-firefly luciferin and AMP, with the release of diphosphate. An oxygenation follows, with release of the AMP group and formation of a very short-lived peroxide that cyclizes into a dioxetanone structure, which collapses, releasing a CO2 molecule. The spontaneous breakdown of the dioxetanone (rather than the hydrolysis of the adenylate) releases the energy (about 50 kcal/mole) that is necessary to generate the excited state of oxyluciferin. The excited luciferin then emits a photon, returning to its ground state. The enzyme has a secondary acyl-CoA ligase activity when acting on L-firefly luciferin (see EC 6.2.1.52).