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{{enzyme
| Name = Watasenia-luciferin 2-monooxygenase
| EC_number = 1.13.12.8
| CAS_number = 
| IUBMB_EC_number = 1/13/12/8
| GO_code = 0050397
| image = 
| width = 
| caption = 
}}
In [[enzymology]], a '''Watasenia-luciferin 2-monooxygenase''' ({{EC number|1.13.12.8}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:Watasenia luciferin + O<sub>2</sub> <math>\rightleftharpoons</math> oxidized Watasenia luciferin + CO<sub>2</sub> + hnu

Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[Watasenia luciferin]] and [[oxygen|O<sub>2</sub>]], whereas its 3 [[product (chemistry)|products]] are [[oxidized Watasenia luciferin]], [[carbon dioxide|CO<sub>2</sub>]], and [[hn]].

This enzyme belongs to the family of [[oxidoreductase]]s, specifically those acting on single donors with O<sub>2</sub> as oxidant and incorporation of two atoms of oxygen into the substrate (oxygenases). The oxygen incorporated need not be derived from O with incorporation of one atom of oxygen (internal monooxygenases o internal mixed-function oxidases).  The systematic name of this enzyme class is '''Watasenia-luciferin:oxygen 2-oxidoreductase (decarboxylating)'''. This enzyme is also called '''Watasenia-type luciferase'''.  

==References==
{{reflist|1}}
* {{cite journal | author = Inoue S, Kakoi H and Goto, T | date = 1976 | title = Squid bioluminescence. III. Isolation and structure of Watasenia luciferin | journal = Tetrahedron Lett. | volume = 17 |doi=10.1016/S0040-4039(01)85503-9  | pages = 2971&ndash;2974 }}

{{1.13-enzyme-stub}}

[[Category:EC 1.13.12]]
[[Category:Enzymes of unknown structure]]