SEARCH Articles Figures Tables Azotobacter vinelandii polynucleotide phosphorylase Nucleoside phosphorylase polynucleotide synthesis Phosphorylase Phosphorylase polynucleotides Phosphorylase polynucleotides Polynucleotide Polynucleotide phosphorylase (PNPase Polynucleotide phosphorylase polymerization Polynucleotide phosphorylase substrates Polynucleotides