https://www.creative-biogene.com/symbolsearch_GFP_13_Reporter-Stable-Cell-Lines.html
Green fluorescence protein (GFP) is a 27 kDa protein derived from the jellyfish Aequorea victoria, which emits green light (emission peak at a wavelenth of 509 nm) when excited by blue light (excitation peak at a wavelenth of 395 nm).