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Recombinant Shigella dysenteriae serotype 1 Shiga toxin subunit B (stxB)

Recombinant Shigella dysenteriae serotype 1 Shiga toxin subunit B (stxB) — recombinant protein from Shigella dysenteriae serotype 1 (strain Sd197), expressed in E.coli. Purity >85%.

SKU: BCRECP-004504 Category:
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Product Specifications

Product SkuBCRECP-004504
Product DescriptionRecombinant Shigella dysenteriae serotype 1 Shiga toxin subunit B (stxB) Protein is expressed from E.coli with N-terminal 10xHis-tagged and C-terminal Myc-tagged. It contains 21-89aa. [Accession | Q32GM0].
Uniprot No.Q32GM0
Gene NamesstxB
PurityGreater than 85% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region21-89aa
SpeciesShigella dysenteriae serotype 1 (strain Sd197)
Tag InfoN-terminal 10xHis-tagged and C-terminal Myc-tagged
Molecular weight15.1kDa
ActivityPlease contact us to obtain bioactivity data.
BufferIf 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.
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Research AreasSignal Transduction

Function

The B subunit is responsible for the binding of the holotoxin to specific receptors on the target cell surface, such as globotriaosylceramide (Gb3) in human intestinal microvilli.

Product Specifications

Recombinant Shigella dysenteriae serotype 1 Shiga toxin subunit B (stxB) is a recombinant protein from Shigella dysenteriae serotype 1 (strain Sd197), expressed in E.coli, covering amino acids 21-89aa, with N-terminal 10xHis-tagged and C-terminal Myc-tagged tag, molecular weight 15.1kDa, purity Greater than 85% 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.

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Protein Biology

Function

The B subunit is responsible for the binding of the holotoxin to specific receptors on the target cell surface, such as globotriaosylceramide (Gb3) in human intestinal microvilli

Subunit

Shiga toxin contains a single subunit A and five copies of subunit B

Gene: stxB  |  Organism: Shigella dysenteriae serotype 1 (strain Sd197)

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Frequently Asked Questions

How do I order or inquire about this product?

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.

What is the shipping and delivery time?

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.

How should this product be stored?

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.

What quality controls are performed on your products?

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.

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