Structured Summary
Abstract
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)
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Classification
Broader headings
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Synonyms
14 entry terms
- O Antigen
- O Antigen, Bacterial
- O-Antigen
- O-Antigens
- O-Specific Polysaccharide
- O-Specific Polysaccharides
- Antigen, Bacterial O
- Antigen, O
- Antigens, O
- Bacterial O Antigen
- O Specific Polysaccharide
- O Specific Polysaccharides
- Polysaccharide, O-Specific
- Polysaccharides, O-Specific
MeSH Record
Aspects Covered
23 allowable subheadings
Indexed with the subheadings administration & dosage, adverse effects, analysis, biosynthesis, blood, cerebrospinal fluid, chemistry, classification, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacology, physiology, poisoning, radiation effects, therapeutic use, toxicity, ultrastructure, urine.
MeSH Record
History Note
96; was O ANTIGEN, BACTERIAL (NM) 1981-95
MeSH Record
Previous Indexing
- Antigens, Bacterial (1981-1992)
- Polysaccharides, Bacterial (1993-1995)
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AMA Style
References
- National Library of Medicine. O Antigens. Medical Subject Headings (MeSH). 2026. Unique ID D019081. http://id.nlm.nih.gov/mesh/2026/D019081
- O Antigens. In: Wikidata. https://www.wikidata.org/wiki/Q76500582