Recombinant Streptococcus downei Cell surface antigen I/II (spaA), partial

Recombinant Streptococcus downei Cell surface antigen I/II (spaA), partial

SKU: BCRECP-004457 Category:
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Product Specifications

Product SkuBCRECP-004457
Product DescriptionRecombinant 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 NamesspaA
PurityGreater than 90% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region503-832aa
SpeciesStreptococcus downei (Streptococcus sobrinus)
Tag InfoC-terminal 6xHis-tagged
Molecular weight42.8kDa
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 AreasOthers

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].

SDS-PAGE: Single band at expected molecular weight confirming purity.

ELISA: Suitable as coating antigen or detection standard.

Western Blot: Compatible with standard Western Blot protocols.

Protein Interaction: Validated for SPR (Surface Plasmon Resonance) and BLI (Bio-Layer Interferometry) studies.

Shipping: Shipped at ambient temperature. Lyophilized protein is stable during transit.

Storage: Store lyophilized protein at -20°C to -80°C. Reconstituted protein should be aliquoted and stored at -80°C. Avoid repeated freeze-thaw cycles.

Shelf Life: 12 months from date of receipt when stored as recommended.

Shipping Time: Orders placed before 2 PM EST ship same day. International orders typically deliver within 5-10 business days.

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