Product Details

Purity

Greater than 90% as determined by SDS-PAGE.

Target Names

NS1

Uniprot No.

P07298

Research Area

Microbiology

Alternative Names

NS1; Initiator protein NS1; NS1; EC 3.1.21.-; EC 3.6.4.12; NCVP1; Non-capsid protein NS-1; Non-structural protein 1; Non-structural protein NS1

Species

Human parvovirus B19 (isolate AU) (HPV B19)

Source

E.coli

Expression Region

1-255aa

Target Protein Sequence

MELFRGVLQVSSNVLDCANDNWWCSLLDLDTSDWEPLTHTNRLMAIYLSSVASKLDFTGGPLAGCLYFFQVECNKFEEGYHIHVVTGGPGLNPRNLTVCVEGLFNNVLYHLVTENVKLKFLPGMTTKGKYFRDGEQFIENYLMKKIPLNVVWCVTNIDGYIDTCISATFRRGACHAKKPRITTAINDTSSDAGESSGTGAEVVPFNGKGTKASIKFQTMVNWLCENRVFTEDKWKLVDFNQYTLLSSSHSGSFQI
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

44.6kDa

Protein Length

Partial

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

The production of this recombinant HPV B19 NS1 protein is just like all recombinant proteins. The process involved transfecting E.coli cells with DNA vector containing the template of recombinant DNA. The E.coli cells containing the template were then cultured so that they could transcribe and translate the NS1 protein. N-terminal 6xHis-SUMO tag was used in the process. The purity is 0.9 determined by SDS-PAGE.

The non-structural protein 1 (NS1) of human parvovirus B19 plays a critical role in viral DNA replication, which performs many diferent functions during the virus life cycle. NS1 of parvovirus B19 induces cell death by apoptosis in at least erythroid-lineage cells by a pathway that involves caspase 3, whose activation may be a key event during NS1-induced cell death. Some studies showed that have shown that NS1 initiates apoptosis by activating caspase 3 (but not caspase 1) in a manner which is deferent from the IL-6 activation pathway. The cytotoxicity of NS1 in such cells results from chromosomal DNA damage caused by the DNA-nicking and DNA-attaching activities of NS1. Studies have been shown NS1 covalently binds to cellular DNA and is modiied by PARP (Poly ADP ribose polymerase), an enzyme involved in repairing single-stranded DNA nicks.

Target Background

Function

Multifunctional protein essential for viral DNA replication, which cooperatively interacts with the viral DNA origin of replication and transactivates several promoters including the viral p6 promoter. Binds the origin of replication and performs an endonucleolytic nick within a conserved sequence in the viral genome, thereby initiating the rolling circle replication (RCR). Participates in the transcriptional regulation the viral p6 promoter that regulates all viral transcripts and the cellular CDN1A or IL6 promoters. Transactivates several host promoters some of which induce the S cell cycle phase for the production of host replicative proteins. Upregulates the expression of host E2F4 and E2F5 and interacts with both these factors thereby inhibiting the host cell cycle G2/M transition. This arrest promotes apoptosis for viral release.

Subcellular Location

Host nucleus.

Protein Families

Parvoviruses non-capsid protein family

Code	CSB-EP357083HPM
Abbreviation	Recombinant Human parvovirus B19 NS1 protein, partial
MSDS	MSDS Datasheet
Size	US$388
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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-EP357083HPM could indicate that this peptide derived from E.coli-expressed Human parvovirus B19 (isolate AU) (HPV B19) NS1. Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP357083HPM could indicate that this peptide derived from E.coli-expressed Human parvovirus B19 (isolate AU) (HPV B19) NS1.
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Recombinant Human parvovirus B19 Non-capsid protein NS-1 (NS1), partial

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