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* luciferina de pirilampo: encontrada em pirilampos, o substrato da enzima luciferase ec 1.13.12.7.
it is the substrate of luciferase (ec 1.13.12.7) responsible for the characteristic yellow light emission from fireflies.
relembro também a cooperação especial brasileiro-alemã no domínio nuclear, que deu origem ao célebre «pirilampo» de angra dos reis.
and then, as far as the regulation you mentioned is concerned, i am not in a position to answer you at the moment, but i will be happy to do so in writing.