title: Enzyme defects and immune dysfunction.
mesh_terms: D000243:Adenosine Deaminase / Q000172:deficiency*; D000494:Allosteric Regulation; D003838:Deoxyadenine Nucleotides / Q000097:blood; D003848:Deoxyguanine Nucleotides / Q000097:blood; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000201:enzymology*; D009700:Nucleoside Deaminases / Q000172:deficiency*; D010430:Pentosyltransferases / Q000172:deficiency*; D011683:Purine-Nucleoside Phosphorylase / Q000172:deficiency*; D012264:Ribonucleotide Reductases / Q000037:antagonists & inhibitors; D012436:S-Adenosylmethionine / Q000378:metabolism
chemical_list: D003838:Deoxyadenine Nucleotides; D003848:Deoxyguanine Nucleotides; D012436:S-Adenosylmethionine; D012264:Ribonucleotide Reductases; D010430:Pentosyltransferases; D011683:Purine-Nucleoside Phosphorylase; D009700:Nucleoside Deaminases; D000243:Adenosine Deaminase