Recombinant Protein A, soluble (S. aureus)
Soluble recombinant staphylococcal Protein A, E. coli-expressed, ≥95% pure. An IgG Fc-binding protein for plate coating, conjugation, and assay development; supplied free in solution, not immobilized on a resin.
SKUGF-PROTA-HU
SpeciesStaphylococcus aureus
Expressed inE. coli BL21(DE3)
UniProtP38507
Purity≥95%
Endotoxin≤0.1 EU/µg
I Overview
Activity is confirmed in the solid-phase human IgG Fc-binding (ELISA) assay. Sterile-filtered solution in PBS, pH 7.4. Supplied frozen and carrier-free.
II Specifications
| Identity | |
| Species | Staphylococcus aureus |
|---|---|
| Expressed in | E. coli BL21(DE3) |
| UniProt | P38507 |
| Accession | AAA26677.1 |
| Physical | |
| Molecular weight | 45 (SDS-PAGE, apparent)kDa |
| Formulation | Sterile-filtered solution in PBS, pH 7.4. Supplied frozen and carrier-free. |
| Carrier | carrier-free |
| Biological activity | |
| Activity | IgG Fc binding is an affinity, not a dose-response |
| Assay | solid-phase human IgG Fc-binding (ELISA) |
| Quality | |
| Purity | ≥95 (SDS-PAGE)% |
| Endotoxin | ≤0.1 (LAL)EU/µg |
| Handling | |
| Thaw & dilution | Supplied ready to use. Thaw on ice, mix gently, and dilute into your buffer. |
| Storage | -80 °C. Aliquot on receipt to avoid repeated freeze/thaw. |
| Stability | 12 mo at -80 °C; 1 wk at 2-8 °C once thawed. Do not refreeze. |
| Grade | Research use only |
IIIStorage & shipping
Storage & shipping
Store-80 °C. Aliquot on receipt to avoid repeated freeze/thaw.ShipDry-ice, overnight onlyShip rate$85 per order, contiguous USStability12 mo at -80 °C; 1 wk at 2-8 °C once thawed. Do not refreeze.
IV Documents
Every lot is released against the published spec and ships with a Certificate of Analysis for that exact lot. Look up a lot CoA →
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