Back to article: Evolution of the bacterial nucleosidase PpnN and its relation to the stringent response
FIGURE 1: Reactions carried out by PpnN and LOG proteins, respectively. (A) PpnN hydrolyses 5'-monophosphate nucleotides at the glycosidic bond to yield ribose-5-phosphate and free nucleobase. (B) LOG proteins activate cytokinin-type plant hormones by releasing a modified adenine from ribose.