title: Protection of polynucleotide phosphorylase by substrates against urea inactivation.
mesh_terms: D000227:Adenine Nucleotides / Q000494:pharmacology; D005964:Glucosyltransferases / Q000037:antagonists & inhibitors*; D010759:Phosphorus Isotopes; D014500:Uracil Nucleotides / Q000494:pharmacology; D014508:Urea / Q000494:pharmacology*
chemical_list: D000227:Adenine Nucleotides; D010759:Phosphorus Isotopes; D014500:Uracil Nucleotides; D014508:Urea; D005964:Glucosyltransferases