Recombinant Rat Plasma kallikrein (Klkb1), partial, Rattus norvegicus (Rat), E.coli, N-terminal 6xHis-tagged, 31.8kDa, purity >90% as determined by SDS-PAGE.

Recombinant Rat Plasma kallikrein (Klkb1), partial

Recombinant Rat Plasma kallikrein (Klkb1), partial — The enzyme cleaves Lys-Arg and Arg-Ser bonds. Purity >90%.

SKU: BCRECP-003219 Category:
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Product Specifications

Product SkuBCRECP-003219
Product DescriptionRecombinant Rat Plasma kallikrein (Klkb1) Protein is expressed from E.coli with N-terminal 6xHis-tagged. It contains 391-638aa. [Accession | P14272].
Uniprot No.P14272
Gene NamesKlkb1
PurityGreater than 90% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region391-638aa
SpeciesRattus norvegicus (Rat)
Tag InfoN-terminal 6xHis-tagged
Molecular weight31.8kDa
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

Function

The enzyme cleaves Lys-Arg and Arg-Ser bonds. It activates, in a reciprocal reaction, factor XII after its binding to a negatively charged surface. It also releases bradykinin from HMW kininogen and may also play a role in the renin-angiotensin system by converting prorenin into renin.

Biological Context

Subcellular Location: Secreted

Product Specifications

Recombinant Rat Plasma kallikrein (Klkb1), partial is a recombinant protein from Rattus norvegicus (Rat), expressed in E.coli, covering amino acids 391-638aa, with N-terminal 6xHis-tagged tag, molecular weight 31.8kDa, purity Greater than 90% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.

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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Protein Biology

Function

The enzyme cleaves Lys-Arg and Arg-Ser bonds. It activates, in a reciprocal reaction, factor XII after its binding to a negatively charged surface. It also releases bradykinin from HMW kininogen and may also play a role in the renin-angiotensin system by converting prorenin into renin

Subcellular Location

Secreted

Subunit

Forms a heterodimer with SERPINA5. The zymogen is activated by factor XIIa, which cleaves the molecule into a light chain, which contains the active site, and a heavy chain, which associates with HMW kininogen. These chains are linked by one or more disulfide bonds (By similarity)

Gene: Klkb1  |  Organism: Rattus norvegicus  |  Synonyms: Fletcher factor; Kininogenin; Plasma prekallikrein

Frequently Asked Questions

How do I order or inquire about this product?

Fill out the Online Inquiry form with your required quantity and specifications. You can also email sales@biocrestsci.com. Our team typically responds within 4 business hours with a quote and availability confirmation.

What is the shipping and delivery time?

Orders placed before 2 PM EST ship the same day. Domestic (US) delivery typically takes 2-3 business days. International orders deliver within 5-10 business days. All products are shipped at ambient temperature with appropriate packaging to ensure stability.

How should I store this recombinant protein?

Lyophilized proteins should be stored at -20°C to -80°C upon receipt. After reconstitution, aliquot and store at -80°C. Avoid repeated freeze-thaw cycles. Shelf life is 12 months from date of receipt when stored as recommended.

What quality controls are performed on your products?

Each product undergoes SDS-PAGE purity analysis (typically >85-95%), endotoxin testing, and bioactivity validation. Products are validated for ELISA, Western Blot, and SPR/BLI applications as specified on this product page. A Certificate of Analysis (CoA) is available upon request.

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