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  4. Exfoliative toxin A Protein, S. aureus (His)

Exfoliative toxin A Protein, S. aureus (His)

Cat. No.: HY-P71484
COA Handling Instructions

Exfoliative toxin A protein, with serine protease-like properties, binds to skin protein profilaggrin, demonstrating cleavage activity after acidic residues. Its involvement is associated with impetigous diseases, particularly staphylococcal scalded skin syndrome (SSSS). Exfoliative toxin A Protein, S. aureus (His) is the recombinant Staphylococcus aureus-derived Exfoliative toxin A protein, expressed by E. coli , with N-6*His labeled tag. The total length of Exfoliative toxin A Protein, S. aureus (His) is 242 a.a., with molecular weight of ~30.9 kDa.

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Description

Exfoliative toxin A protein, with serine protease-like properties, binds to skin protein profilaggrin, demonstrating cleavage activity after acidic residues. Its involvement is associated with impetigous diseases, particularly staphylococcal scalded skin syndrome (SSSS). Exfoliative toxin A Protein, S. aureus (His) is the recombinant Staphylococcus aureus-derived Exfoliative toxin A protein, expressed by E. coli , with N-6*His labeled tag. The total length of Exfoliative toxin A Protein, S. aureus (His) is 242 a.a., with molecular weight of ~30.9 kDa.

Background

The Exfoliative toxin A protein possesses serine protease-like properties and has an affinity for binding to the skin protein profilaggrin. It exhibits cleavage activity specifically after acidic residues. Notably, exfoliative toxins, including Exfoliative toxin A, are implicated in causing impetigous diseases commonly known as staphylococcal scalded skin syndrome (SSSS).

Species

Staphylococcus aureus

Source

E. coli

Tag

N-6*His

Accession

P09331 (E39-E280)

Gene ID

/

Molecular Construction
N-term
6*His
Exfoliative toxin A (E39-E280)
Accession # P09331
C-term
Synonyms
etaExfoliative toxin A; EC 3.4.21.-; Epidermolytic toxin A
AA Sequence

EVSAEEIKKHEEKWNKYYGVNAFNLPKELFSKVDEKDRQKYPYNTIGNVFVKGQTSATGVLIGKNTVLTNRHIAKFANGDPSKVSFRPSINTDDNGNTETPYGEYEVKEILQEPFGAGVDLALIRLKPDQNGVSLGDKISPAKIGTSNDLKDGDKLELIGYPFDHKVNQMHRSEIELTTLSRGLRYYGFTVPGNSGSGIFNSNGELVGIHSSKVSHLDREHQINYGVGIGNYVKRIINEKNE

Molecular Weight

Approximately 30.9 kDa

Purity

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

Appearance

Lyophilized powder.

Formulation

Lyophilized after extensive dialysis against solution in 20 mM Tris-HC1, 0.5 M NaCl, 6% Trehalose, pH 8.0.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years. 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.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

Exfoliative toxin A Protein, S. aureus (His) 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

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

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

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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Exfoliative toxin A Protein, S. aureus (His)
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HY-P71484
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