
Keywords: PNP; purine nucleoside phosphorylase; H. pylori PNP-Zg; recombinant H. pylori PNP from clinical isolate of Clinical Hospital Center Zagreb, Croatia; XOX; xanthine oxidase; Ino; inosine; Ado; adenosine; m7Guo; 7-methylguanosine; SEC; size-exclusion chromat