title: A simple biological method for detecting streptococcal nicotinamide adenine dinucleotide glycohydrolase.
abstract: A biological method for detecting streptococcal nicotinamide adenine dinucleotide glycohydrolase (NADG) is presented, based on its ability to inhibit the growth of Haemophilus parainfluenzae. Three hundred clinical isolates of beta-haemolytic streptococci were tested. All isolates producing NADG belonged to Lancefield's group A, C, or G.
mesh_terms: D001681:Biological Assay; D006190:Haemophilus / Q000187:drug effects / Q000254:growth & development; D009244:NAD+ Nucleosidase / Q000032:analysis* / Q000494:pharmacology; D013291:Streptococcus / Q000201:enzymology*
chemical_list: D009244:NAD+ Nucleosidase