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O Antigens MeSH Descriptor Data 2023


MeSH Heading
O Antigens
Tree Number(s)
D09.698.718.450.600
D10.494.600
D23.050.161.616.525.600
D23.946.123.329.500.600
Unique ID
D019081
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D019081
Scope Note
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)
Entry Term(s)
O Antigen
O Antigen, Bacterial
O-Antigen
O-Antigens
O-Specific Polysaccharide
O-Specific Polysaccharides
Registry Number
0
Previous Indexing
Antigens, Bacterial (1981-1992)
Polysaccharides, Bacterial (1993-1995)
Public MeSH Note
96; O ANTIGEN, BACTERIAL was indexed under POLYSACCHARIDES, BACTERIAL 1993-95 & ANTIGENS, BACTERIAL 1981-92
Online Note
use O ANTIGENS (NM) to search O ANTIGEN, BACTERIAL 1981-95
History Note
96; was O ANTIGEN, BACTERIAL (NM) 1981-95
Date Established
1996/01/01
Date of Entry
1995/06/05
Revision Date
2022/05/23
O Antigens Preferred
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