Recombinant Escherichia coli RNA-binding protein Hfq (hfq)

Recombinant Escherichia coli RNA-binding protein Hfq (hfq) — RNA chaperone that binds small regulatory RNA (sRNAs) and mRNAs to facilitate mRNA translational regulation in response to envelope stress, environmental stress and changes in metabolite concentrat… Purity >85%.

SKU: BCRECP-002986 Category:

Product Specifications

Product SkuBCRECP-002986
Product DescriptionRecombinant Escherichia coli RNA-binding protein Hfq (hfq) Protein is expressed from E.coli with N-terminal 10xHis-tagged and C-terminal Myc-tagged. It contains 2-102aa. [Accession | P0A6X3].
Uniprot No.P0A6X3
Gene Nameshfq
PurityGreater than 85% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region2-102aa
SpeciesEscherichia coli (strain K12)
Tag InfoN-terminal 10xHis-tagged and C-terminal Myc-tagged
Molecular weight18.5kDa
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

RNA chaperone that binds small regulatory RNA (sRNAs) and mRNAs to facilitate mRNA translational regulation in response to envelope stress, environmental stress and changes in metabolite concentrations. Involved in the regulation of stress responses mediated by the sigma factors RpoS, sigma-E and sigma-32. Binds with high specificity to tRNAs.

Biological Context

Subcellular Location: Cytoplasm

Product Specifications

Recombinant Escherichia coli RNA-binding protein Hfq (hfq) is a recombinant protein from Escherichia coli (strain K12), expressed in E.coli, covering amino acids 2-102aa, with N-terminal 10xHis-tagged and C-terminal Myc-tagged tag, molecular weight 18.5kDa, 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.

Protein Biology

Function

RNA chaperone that binds small regulatory RNA (sRNAs) and mRNAs to facilitate mRNA translational regulation in response to envelope stress, environmental stress and changes in metabolite concentrations. Involved in the regulation of stress responses mediated by the sigma factors RpoS, sigma-E and sigma-32 (PubMed:17158661). Binds with high specificity to tRNAs (PubMed:18230766). Binds sRNA antitoxin RalA (PubMed:24748661). In vitro, stimulates synthesis of long tails by poly(A) polymerase I (PubMed:10677490). Required for RNA phage Qbeta replication (PubMed:805130). Seems to play a role in persister cell formation; upon overexpression decreases persister cell formation while deletion increases persister formation (PubMed:19909729)

Subcellular Location

Cytoplasm

Subunit

Homohexamer (PubMed:12853626). Interacts with H-NS (PubMed:11222598)

Gene: hfq  |  Organism: Escherichia coli (strain K12)  |  Synonyms: HF-1; Host factor-I protein
Key Publications

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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