Enterotoxin type E Protein, S. aureus (His)
Based on 1 Customer Validation
ENTE Proteinas are staphylococcal enterotoxins that activate the host immune system by binding to major histocompatibility complex class II and T-cell receptor (TCR) molecules. This interaction forms a ternary complex that activates T lymphocytes and induces the systemic release of proinflammatory cytokines. Enterotoxin type E Protein, S. aureus (His) is the recombinant Staphylococcus aureus-derived ENTE protein, expressed by E. coli , with N-6*His labeled tag.
- Species: Staphylococcus aureus
- Source: E. coli
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Storage:Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
ENTE Proteinas are staphylococcal enterotoxins that activate the host immune system by binding to major histocompatibility complex class II and T-cell receptor (TCR) molecules. This interaction forms a ternary complex that activates T lymphocytes and induces the systemic release of proinflammatory cytokines. Enterotoxin type E Protein, S. aureus (His) is the recombinant Staphylococcus aureus-derived ENTE protein, expressed by E. coli , with N-6*His labeled tag.
Background
ENTE, a staphylococcal enterotoxin, plays a pivotal role in activating the host immune system by binding as unprocessed molecules to major histocompatibility complex class II and T-cell receptor (TCR) molecules. This interaction results in the formation of a ternary complex, which, in turn, activates a significant number of T-lymphocytes, triggering a systemic release of pro-inflammatory cytokines. Beyond its immunomodulatory functions, ENTE is implicated in the development of staphylococcal food poisoning syndrome, a condition characterized by symptoms such as intoxication, fever, and gastrointestinal distress. These activities highlight the impact of ENTE on both immune response pathways and pathological outcomes.
MCE Validation Data
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Purity - SDS-PAGE
Purity - SDS-PAGE
Technical Parameters
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Species Staphylococcus aureus
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Source E. coli
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Tag N-6*His
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Accession
P12993 (S28-T257)
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Gene ID/
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Molecular Construction
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N-term
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6*His
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ENTE (S28-T257)
Accession # P12993 -
C-term
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Protein Length
Full Length of Mature Protein
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Synonyms
Enterotoxin type E; SEE; entE
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AA Sequence
SEEINEKDLRKKSELQRNALSNLRQIYYYNEKAITENKESDDQFLENTLLFKGFFTGHPWYNDLLVDLGSKDATNKYKGKKVDLYGAYYGYQCAGGTPNKTACMYGGVTLHDNNRLTEEKKVPINLWIDGKQTTVPIDKVKTSKKEVTVQELDLQARHYLHGKFGLYNSDSFGGKVQRGLIVFHSSEGSTVSYDLFDAQGQYPDTLLRIYRDNKTINSENLHIDLYLYTT
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Predicted Molecular Mass
26.6 kDa
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Molecular Weight
Approximately 27 kDa, based on SDS-PAGE under reducing conditions.
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder.
Lyophilized from a 0.22 μm filtered solution of 50 mM Tris-HCl, 300 mM NaCl, pH 7.4, 5% trehalose, 5% mannitol and 0.01% Tween 80.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.
<1 EU/μg, determined by LAL method.
It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.
Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Room temperature in continental US; may vary elsewhere.
Documentation
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Data Sheet (236 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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