Name: Recombinant Hepatitis B virus genotype D subtype ayw Protein X (X)
Brand: CUSABIO
SKU: CSB-EP355969HEM

Product Details

Purity

Greater than 90% as determined by SDS-PAGE.

Target Names

Uniprot No.

P03165

Research Area

Others

Alternative Names

XProtein X; HBx; Peptide X; pX

Species

Hepatitis B virus genotype D subtype ayw (isolate France/Tiollais/1979) (HBV-D)

Source

E.coli

Expression Region

1-154aa

Target Protein Sequence

MAARLCCQLDPARDVLCLRPVGAESRGRPFSGSLGTLSSPSPSAVPTDHGAHLSLRGLPVCAFSSAGPCALRFTSARRMETTVNAHQILPKVLHKRTLGLSAMSTTDLEAYFKDCLFKDWEELGEEIRLKVFVLGGCRHKLVCAPAPCNFFTSA
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.

Mol. Weight

32.6kDa

Protein Length

Full Length

Tag Info

N-terminal 6xHis-SUMO-tagged

Form

Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Buffer

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

3-7 business days

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet & COA

Please contact us to get it.

Description

In the general approach to express the recombinant Hepatitis B virus genotype D subtype ayw (isolate France/Tiollais/1979) Protein X, a plasmid encoding the Hepatitis B virus genotype D subtype ayw (isolate France/Tiollais/1979) Protein X (1-154aa) is first constructed. The constructed plasmid is then introduced into e.coli cells. Plasmid-containing e.coli cells are screened and cultured under conditions that induce the protein expression. The protein is fused with a N-terminal 6xHis-SUMO tag. Lysing the cultured cells and purifying the resulting recombinant Protein X through affinity purification. The SDS-PAGE analysis is conducted to confirm the presence of the recombinant Protein X and assess its purity. Its purity is over 90%.

Customer Reviews and Q&A

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■ Q&A

We are interested in several small units of many different products. However, we are only interested in products with a GST tag. For those listed below that have a His tag, what is the expense and time associated with getting these in a GST tag? CSB-EP355969HEM His

Thanks for your inquiry，Note: We use different codes for different tags now, so the codes of these proteins have been updated below.
CSB-EP355969HEMe0
Name: Recombinant Hepatitis B virus genotype D subtype ayw Protein X(X)
Expression Region: 1-154aa, Full Length
Tag Info: N-terminal GST-tag
Expression Sequence:

MAARLCCQLDPARDVLCLRPVGAESRGRPFSGSLGTLSSPSPSAVPTDHGAHLSLRGLPVCAFSSAGPCALRFTSARRMETTVNAHQILPKVLHKRTLGLSAMSTTDLEAYFKDCLFKDWEELGEEIRLKVFVLGGCRHKLVCAPAPCNFFTSA

Shipping format: The default delivery form is liquid form. If the customer has demand for lyophilized form, please remark this requirement when placing order.
Optional service: Do you want aseptic processing and/or endotoxin removal for this protein (recommended for cell culture or in vivo use)? With our endotoxin removal service we guarantee the endotoxin level to be
less than 0.1ng/ug (1EU ug). Both aseptic processing and endotoxin removal services are free of charge however they must be requested when the order is placed.
Purity: Greater than 90% as determined by SDS-PAGE.

Target Background

Function

Multifunctional protein that plays a role in silencing host antiviral defenses and promoting viral transcription. Does not seem to be essential for HBV infection. May be directly involved in development of cirrhosis and liver cancer (hepatocellular carcinoma). Most of cytosolic activities involve modulation of cytosolic calcium. The effect on apoptosis is controversial depending on the cell types in which the studies have been conducted. May induce apoptosis by localizing in mitochondria and causing loss of mitochondrial membrane potential. May also modulate apoptosis by binding host CFLAR, a key regulator of the death-inducing signaling complex (DISC). Promotes viral transcription by using the host E3 ubiquitin ligase DDB1 to target the SMC5-SMC6 complex to proteasomal degradation. This host complex would otherwise bind to viral episomal DNA, and prevents its transcription. Moderately stimulates transcription of many different viral and cellular transcription elements. Promoters and enhancers stimulated by HBx contain DNA binding sites for NF-kappa-B, AP-1, AP-2, c-EBP, ATF/CREB, or the calcium-activated factor NF-AT.

Subcellular Location

Host cytoplasm. Host nucleus. Host mitochondrion.

Protein Families

Orthohepadnavirus protein X family

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Code	CSB-EP355969HEM
MSDS	MSDS Datasheet
Size	US$388
	Order now
Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel. Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP355969HEM could indicate that this peptide derived from E.coli-expressed Hepatitis B virus genotype D subtype ayw (isolate France/Tiollais/1979) (HBV-D) X. Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP355969HEM could indicate that this peptide derived from E.coli-expressed Hepatitis B virus genotype D subtype ayw (isolate France/Tiollais/1979) (HBV-D) X.
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Recombinant Hepatitis B virus genotype D subtype ayw Protein X (X)

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