title: Labile type-specific antigen of Moraxella catarrhalis.
abstract: By using hot acid extract and double-diffusion studies, an antigen isolated from clinical strains of Moraxella catarrhalis, designated the C antigen, was studied. The antigen is labile, relatively trypsin insensitive, and either polysaccharide or glycoconjugate in nature. At least two serologically distinct C antigens have been identified.
authors: Department of Microbiology and Immunology, School of Medicine, University of North Dakota, Grand Forks 58202.
authors: S J
authors: SJ
authors: Norkus
authors: J W
authors: JW
authors: Vennes
mesh_terms: D000942:Antigens, Bacterial / Q000737:chemistry / Q000302:isolation & purification*; D001431:Bacteriological Techniques; D006801:Humans; D005779:Immunodiffusion; D001936:Moraxella catarrhalis / Q000276:immunology* / Q000302:isolation & purification
chemical_list: D000942:Antigens, Bacterial