title: Progress in understanding the mechanism of immunodeficiency disease associated with defects in purine metabolism.
mesh_terms: D000243:Adenosine Deaminase / Q000172:deficiency*; D002648:Child; D004912:Erythrocytes / Q000201:enzymology; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications / Q000201:enzymology*; D009700:Nucleoside Deaminases / Q000172:deficiency*; D009708:Nucleotidases / Q000172:deficiency; D010430:Pentosyltransferases / Q000172:deficiency*; D011683:Purine-Nucleoside Phosphorylase / Q000172:deficiency*; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000150:complications / Q000201:enzymology*
chemical_list: D010430:Pentosyltransferases; D011683:Purine-Nucleoside Phosphorylase; D009708:Nucleotidases; D009700:Nucleoside Deaminases; D000243:Adenosine Deaminase