Enterotoxin type A (T3D2618)
Record Information | |||||||||||
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Version | 2.0 | ||||||||||
Creation Date | 2009-07-06 18:11:34 UTC | ||||||||||
Update Date | 2014-12-24 20:25:46 UTC | ||||||||||
Accession Number | T3D2618 | ||||||||||
Identification | |||||||||||
Common Name | Enterotoxin type A | ||||||||||
Class | Protein | ||||||||||
Description | Enterotoxin type A is one of many enterotoxins produced by Staphylococcus aureus. Enterotoxins are cytotoxic and kill cells by altering the apical membrane permeability of the mucosal (epithelial) cells of the intestinal wall. They are mostly pore forming toxins that assemble to form pores in cell membranes. (2) | ||||||||||
Compound Type |
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Protein Structure | |||||||||||
Synonyms |
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Chemical Formula | Not Available | ||||||||||
Average Molecular Mass | 29669.310 g/mol | ||||||||||
CAS Registry Number | Not Available | ||||||||||
Sequence | Not Available | ||||||||||
Chemical Taxonomy | |||||||||||
Description | Not Available | ||||||||||
Kingdom | Organic Compounds | ||||||||||
Super Class | Organic Acids | ||||||||||
Class | Carboxylic Acids and Derivatives | ||||||||||
Sub Class | Amino Acids, Peptides, and Analogues | ||||||||||
Direct Parent | Peptides | ||||||||||
Alternative Parents | Not Available | ||||||||||
Substituents | Not Available | ||||||||||
Molecular Framework | Not Available | ||||||||||
External Descriptors | Not Available | ||||||||||
Biological Properties | |||||||||||
Status | Detected and Not Quantified | ||||||||||
Origin | Exogenous | ||||||||||
Cellular Locations | Not Available | ||||||||||
Biofluid Locations | Not Available | ||||||||||
Tissue Locations | Not Available | ||||||||||
Pathways | Not Available | ||||||||||
Applications | Not Available | ||||||||||
Biological Roles | Not Available | ||||||||||
Chemical Roles | Not Available | ||||||||||
Physical Properties | |||||||||||
State | Liquid | ||||||||||
Appearance | Clear solution. | ||||||||||
Experimental Properties |
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Predicted Properties | Not Available | ||||||||||
Spectra | |||||||||||
Spectra |
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Toxicity Profile | |||||||||||
Route of Exposure | Ingestion (3) ; inhalation (3) ; dermal (3) | ||||||||||
Mechanism of Toxicity | The action of enterotoxins leads to increased chloride ion permeability of the apical membrane of intestinal mucosal cells. These membrane pores are activated by either increased cAMP or by increased calcium ion concentration intracellularly. The pore formation has a direct effect on the osmolarity of the luminal contents of the intestines. Increased chloride permeability leads to leakage into the lumen followed by sodium and water movement. This leads to a secretory diarrhea within a few hours of ingesting enterotoxin. (2) | ||||||||||
Metabolism | Free toxin may be removed by opsonization via the reticuloendothelial system (primarily the liver and kidneys) or it may be degraded through cellular internalization via the lysosomes. Lysosomes are membrane-enclosed organelles that contain an array of digestive enzymes, including several proteases. | ||||||||||
Toxicity Values | Not Available | ||||||||||
Lethal Dose | Not Available | ||||||||||
Carcinogenicity (IARC Classification) | No indication of carcinogenicity to humans (not listed by IARC). | ||||||||||
Uses/Sources | Enterotoxin type A is one of many enterotoxins produced by Staphylococcus aureus. (2) | ||||||||||
Minimum Risk Level | Not Available | ||||||||||
Health Effects | Enterotoxins are cytotoxic. (2) | ||||||||||
Symptoms | Enterotoxins cause diarrhea. (2) | ||||||||||
Treatment | The treatment of choice for S. aureus infection is penicillin, but in most countries, penicillin-resistance is extremely common and first-line therapy is most commonly a penicillinase-resistant penicillin (for example, oxacillin or flucloxacillin). Combination therapy with gentamicin may be used to treat serious infections like endocarditis, but its use is controversial because of the high risk of damage to the kidneys. The duration of treatment depends on the site of infection and on severity. (1) | ||||||||||
Normal Concentrations | |||||||||||
Not Available | |||||||||||
Abnormal Concentrations | |||||||||||
Not Available | |||||||||||
External Links | |||||||||||
DrugBank ID | Not Available | ||||||||||
HMDB ID | Not Available | ||||||||||
PubChem Compound ID | Not Available | ||||||||||
ChEMBL ID | Not Available | ||||||||||
ChemSpider ID | Not Available | ||||||||||
KEGG ID | Not Available | ||||||||||
UniProt ID | P0A0L2 | ||||||||||
OMIM ID | |||||||||||
ChEBI ID | Not Available | ||||||||||
BioCyc ID | Not Available | ||||||||||
CTD ID | Not Available | ||||||||||
Stitch ID | Enterotoxin type A | ||||||||||
PDB ID | 1DYQ | ||||||||||
ACToR ID | Not Available | ||||||||||
Wikipedia Link | Not Available | ||||||||||
References | |||||||||||
Synthesis Reference | Not Available | ||||||||||
MSDS | Not Available | ||||||||||
General References | |||||||||||
Gene Regulation | |||||||||||
Up-Regulated Genes | Not Available | ||||||||||
Down-Regulated Genes | Not Available |