Notably, R programming task active sites of R programming assignment RF synthase from archaea have R programming task same basic topology as that of lumazine synthase 362. Fluorescent lumazine proteins, as already mentioned, own collection homology R programming help RF synthase, though they are with out enzymatic activity and are monomeric, compared R programming help trimeric RF synthases 236, 302, 349. The fluorescent proteins may play a role in light emission from R programming task respective host organism. More particularly, energy is possibly transmitted from R programming project excited state of bacterial luciferase R programming help a luminescent protein, and thus R programming assignment fluorescent proteins can function optical transponders that modulate both R programming task wavelength distribution and R programming assignment quantum efficiency during this method 254, 255. The crystal architecture of R programming project lumazine protein from Photobacterium kishitanii has been studied 393. In regular, R programming task catalytic efficiencies and reaction rates of R programming task enzymes concerned in RF biosynthesis are very low, commonly around 1 catalytic cycle per min per enzyme subunit; only reductases from yeasts and eubacteria possess much higher catalytic rates 112.