Recombinant Streptococcus downei Cell surface antigen I/II (spaA), partial — recombinant protein from Streptococcus downei (Streptococcus sobrinus), expressed in E.coli. Purity >90%.
| Product Sku | BCRECP-004457 |
| Product Description | Recombinant Streptococcus downei Cell surface antigen I/II (spaA) Protein is expressed from E.coli with C-terminal 6xHis-tagged. It contains 503-832aa. [Accession | P21979]. |
| Uniprot No. | P21979 |
| Gene Names | spaA |
| Purity | Greater than 90% as determined by SDS-PAGE. |
| Expression System | E.coli |
| Expression Region | 503-832aa |
| Species | Streptococcus downei (Streptococcus sobrinus) |
| Tag Info | C-terminal 6xHis-tagged |
| Molecular weight | 42.8kDa |
| Activity | Please contact us to obtain bioactivity data. |
| Buffer | If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose. |
| Storage | Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles. |
| Research Areas | Others |
Subcellular Location: Secreted, cell wall (Peptidoglycan-anchor)
Recombinant Streptococcus downei Cell surface antigen I/II (spaA), partial is a recombinant protein from Streptococcus downei (Streptococcus sobrinus), expressed in E.coli, covering amino acids 503-832aa, with C-terminal 6xHis-tagged tag, molecular weight 42.8kDa, purity Greater than 90% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.
Recommended applications depend on the target, product format, and product-specific validation data. Refer to the product datasheet or Certificate of Analysis (CoA), or contact BioCrest Sci for application guidance.
Biological Activity: Please contact us to obtain bioactivity data.
Storage: Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shipping & Lead Time: Availability, shipping conditions, and estimated lead time are confirmed in the formal quotation or order confirmation based on the product format, destination, and order requirements.
Secreted, cell wall (Peptidoglycan-anchor)
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Submit the Online Inquiry form with your required quantity and specifications, or email sales@biocrestsci.com. Available sizes, pricing, stock status, documentation, and estimated lead time are confirmed in the formal quotation.
Availability, dispatch timing, shipping conditions, and delivery estimates depend on the product format, destination, and order requirements. These details are confirmed in the formal quotation or order confirmation.
Follow the storage and handling instructions in the product-specific datasheet and Certificate of Analysis (CoA). Requirements may vary by product form and formulation; contact BioCrest Sci if product-specific guidance is needed.
Quality-control data such as identity, purity, endotoxin level, or biological activity are provided only when specified on this product page, the datasheet, or Certificate of Analysis (CoA). Biological activity is not implied unless explicitly stated.
