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Enterotoxin type A Protein, S. aureus (Baculovirus, His-Myc)

Cat. No.: HY-P72059
Handling Instructions

Enterotoxins (ETAs) trigger host immune system activation by binding to major histocompatibility complex class II and T-cell receptor (TCR) molecules. This interaction triggers a cascade of cell activation, cytokine production and migration, primarily mediated by Alphata T cells, affecting lung tissue and airways. Enterotoxin type A Protein, S. aureus (Baculovirus, His-Myc) is the recombinant Staphylococcus aureus-derived Enterotoxin type A protein, expressed by Sf9 insect cells , with N-10*His, C-Myc labeled tag. The total length of Enterotoxin type A Protein, S. aureus (Baculovirus, His-Myc) is 233 a.a., with molecular weight of ~31.0 kDa.

For research use only. We do not sell to patients.

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Description

Enterotoxins (ETAs) trigger host immune system activation by binding to major histocompatibility complex class II and T-cell receptor (TCR) molecules. This interaction triggers a cascade of cell activation, cytokine production and migration, primarily mediated by Alphata T cells, affecting lung tissue and airways. Enterotoxin type A Protein, S. aureus (Baculovirus, His-Myc) is the recombinant Staphylococcus aureus-derived Enterotoxin type A protein, expressed by Sf9 insect cells , with N-10*His, C-Myc labeled tag. The total length of Enterotoxin type A Protein, S. aureus (Baculovirus, His-Myc) is 233 a.a., with molecular weight of ~31.0 kDa.

Background

Enterotoxin type A (ETA) is a staphylococcal enterotoxin that instigates host immune system activation by binding in its unprocessed form to major histocompatibility complex class II and T-cell receptor (TCR) molecules. This interaction sets off a cascade of events involving waves of cellular activation, cytokine production, and migration, primarily mediated by alphabeta T-cells, ultimately affecting lung tissue and airways. Additionally, ETA is implicated in the development of staphylococcal food poisoning syndrome, characterized by symptoms such as high fever, hypotension, diarrhea, shock, and, in severe cases, potential fatality.

Species

Staphylococcus aureus

Source

Sf9 insect cells

Tag

N-10*His;C-Myc

Accession

P0A0L2 (S25-S257)

Gene ID

/

Molecular Construction
N-term
10*His
SEA (S25-S257)
Accession # P0A0L2
Myc
C-term
Synonyms
entAEnterotoxin type A; SEA
AA Sequence

SEKSEEINEKDLRKKSELQGTALGNLKQIYYYNEKAKTENKESHDQFLQHTILFKGFFTDHSWYNDLLVDFDSKDIVDKYKGKKVDLYGAYYGYQCAGGTPNKTACMYGGVTLHDNNRLTEEKKVPINLWLDGKQNTVPLETVKTNKKNVTVQELDLQARRYLQEKYNLYNSDVFDGKVQRGLIVFHTSTEPSVNYDLFGAQGQYSNTLLRIYRDNKTINSENMHIDIYLYTS

Molecular Weight

Approximately 31.0 kDa

Purity

Greater than 90% as determined by reducing SDS-PAGE.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Documentation

Enterotoxin type A Protein, S. aureus (Baculovirus, His-Myc) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Enterotoxin type A Protein, S. aureus (Baculovirus, His-Myc)
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HY-P72059
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