The secreted luciferases responsible for light emission of marine copepods have gained popularity for being used in noninvasive imaging of intracellular events. The secreted luciferase of copepod Gaussia princeps is a one-subunit protein catalyzing coelenterazine

Proteins engineered to generate fluorescent or bioluminescent signals are commonly used for the non-invasive study of a variety of biological processes and diseases in animals and humans (1-3). Usually the enhanced green fluorescent proteins, the variant

Adult male and female Gaussia princeps (T. Scott) produce bright, extracellular luminescent displays usually coupled with the initiation of rapid swimming. Glands of the head, mandibular palps, urosome, furca, and underlying at least 14 body pores contribute