"Cholera Toxin" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
An ENTEROTOXIN from VIBRIO CHOLERAE. It consists of two major protomers, the heavy (H) or A subunit and the B protomer which consists of 5 light (L) or B subunits. The catalytic A subunit is proteolytically cleaved into fragments A1 and A2. The A1 fragment is a MONO(ADP-RIBOSE) TRANSFERASE. The B protomer binds cholera toxin to intestinal epithelial cells, and facilitates the uptake of the A1 fragment. The A1 catalyzed transfer of ADP-RIBOSE to the alpha subunits of heterotrimeric G PROTEINS activates the production of CYCLIC AMP. Increased levels of cyclic AMP are thought to modulate release of fluid and electrolytes from intestinal crypt cells.
| Descriptor ID |
D002772
|
| MeSH Number(s) |
D08.811.913.400.725.115.180 D23.946.123.194 D23.946.330.150
|
| Concept/Terms |
Cholera Toxin- Cholera Toxin
- Toxin, Cholera
- Cholera Exotoxin
- Exotoxin, Cholera
- Choleragen
- Cholera Enterotoxin CT
- CT, Cholera Enterotoxin
- Enterotoxin CT, Cholera
Choleragenoid- Choleragenoid
- Cholera Toxin Protomer B
- Cholera Toxin B Subunit
|
Below are MeSH descriptors whose meaning is more general than "Cholera Toxin".
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