- 1. o aminobenzoate
- [ ] (UMLS (CSP) C0178778) =Organic Chemical =benzoate;
| - 2. O antigen
- [The lipopolysaccharide-protein somatic antigens, usually from gram-negative bacteria, important in the serological classification of enteric bacilli. The O-specific chains determine the specificity of the O antigens of a given serotype. O antigens are the immunodominant part of the lipopolysaccharide molecule in the intact bacterial cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) ( MSH )] (UMLS (CSP) C0069180) =Carbohydrate; Immunologic Factor ;
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