... pyrimidine deaminase/pyrimidine reductase,riboflavin synthase, GTP cyclohydrolase II/3,4-dihydr-oxy-2-butanone 4-phosphate synthase, and lumazine syn-thase. The genes coding for these enzymes ... (2000) Structural and functional analysis of the riboflavin synthesis genes encoding GTPcyclohydrolase II (ribA), DHBP synthase (ribBA), riboflavinsynthase (ribC), and riboflavin deaminase/reductase ... Chemistry, Faculty of Engineering, Osaka City University, JapanPhotobacterium phosphoreum IFO 13896 emits light stronglywhen cultured in medium containing 3% NaCl, but onlyweakly in medium containing...