:: If this is necessary for more detailed treatment of firefly, dinoflagellate and bacterial luciferases, so be it, but we should definitely have a top-level article on luciferases in general: though I wonder if even that isn't a somewhat misleadingly specialized title, as there are other enzymes in the shape of photoproteins like aequorin which would be best discussed along with luciferases (narrowly understood) as 'light-generating enzymes'. Shame that history forbids us from calling all of those proteins 'luciferases'.