Recombinant Enterobacteria phage Qbeta Coat protein, Escherichia virus Qbeta (Bacteriophage Q-beta), E.coli, N-terminal 6xHis-tagged, 18.3kDa, purity >90% as determined by SDS-PAGE.

Recombinant Enterobacteria phage Qbeta Coat protein

Recombinant Enterobacteria phage Qbeta Coat protein — Acts as a translational repressor of viral replicase synthesis late in infection. Purity >90%.

SKU: BCRECP-003662 Category:
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Product Specifications

Product SkuBCRECP-003662
Product DescriptionRecombinant Enterobacteria phage Qbeta Coat protein is expressed from E.coli with N-terminal 6xHis-tagged. It contains 1-133aa. [Accession | P03615].
Uniprot No.P03615
PurityGreater than 90% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region1-133aa
SpeciesEscherichia virus Qbeta (Bacteriophage Q-beta)
Tag InfoN-terminal 6xHis-tagged
Molecular weight18.3kDa
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

Acts as a translational repressor of viral replicase synthesis late in infection. This latter function is the result of capsid protein interaction with an RNA hairpin which contains the replicase ribosome-binding site.

Biological Context

Subcellular Location: Virion

Product Specifications

Recombinant Enterobacteria phage Qbeta Coat protein is a recombinant protein from Escherichia virus Qbeta (Bacteriophage Q-beta), expressed in E.coli, covering amino acids 1-133aa, with N-terminal 6xHis-tagged tag, molecular weight 18.3kDa, 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

Acts as a translational repressor of viral replicase synthesis late in infection. This latter function is the result of capsid protein interaction with an RNA hairpin which contains the replicase ribosome-binding site

Subcellular Location

Virion

Subunit

Homodimer (PubMed:16531233). The homodimers binds to the viral RNA via an operator hairpin, but also to many other RNA sequences in the viral genome; this interaction probably shifts the virus from the replicative to the assembly phase and ensures specific encapsidation of the viral genome (PubMed:16531233, PubMed:8943226). Interacts with the maturation protein A2 (PubMed:28111107, PubMed:29078304)

Organism: Escherichia virus Qbeta  |  Synonyms: Coat protein
Key Publications

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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