title: Adenosine deaminase and purine nucleoside phosphorylase deficiency: how they were discovered and what they may mean.
mesh_terms: D000243:Adenosine Deaminase / Q000172:deficiency* / Q000235:genetics; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000175:diagnosis* / Q000201:enzymology; D009700:Nucleoside Deaminases / Q000172:deficiency*; D010430:Pentosyltransferases / Q000172:deficiency*; D011683:Purine-Nucleoside Phosphorylase / Q000172:deficiency*; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000175:diagnosis / Q000201:enzymology / Q000276:immunology
chemical_list: D010430:Pentosyltransferases; D011683:Purine-Nucleoside Phosphorylase; D009700:Nucleoside Deaminases; D000243:Adenosine Deaminase