Recombinant Viral Yellow Fever Virus NS1 Protein, CF

Catalog #: 9776-YF Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
9776-YF-100

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All Yellow Fever Virus NS1 Proteins and Enzymes

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Viral Yellow Fever Virus NS1 Protein, CF Summary

Product Specifications

Purity

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

Activity

Bioassay data are not available.

Source

Human embryonic kidney cell, HEK293-derived viral Yellow Fever Virus NS1 protein
Gln780-His1134, with C-terminal 6-His tag

Accession #

P03314

N-terminal Sequence
Analysis

Gln780 predicted and inferred from enzymatic pyroglutamate treatment revealing Gly781. Cys782 observed.

Predicted Molecular Mass

41 kDa

SDS-PAGE

42-59 kDa, reducing conditions

Product Datasheets

9776-YF

Product Datasheet

COA

SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

9776-YF

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 250 μg/mL in PBS.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Scientific Data

Bioactivity not tested

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R&D Systems proteins are almost always sold with a bioassay to indicate activity. However, we recognize that sometimes proteins might be novel, and their bioactivity may not be well understood. In addition, some researchers may wish to use polypeptides to make antibodies. To facilitate the advancement of new science, we now offer our Innovator Series of proteins.

Reconstitution Calculator

Background: Yellow Fever Virus NS1

Yellow fever virus (YFV) non-structural protein 1 (NS1) is produced by yellow fever virus (YFV), a mosquito-borne flavivirus that is responsible for numerous epidemics of yellow fever disease with high fatality rates (1). Flavivirus NS1 is a multifunctional virulence factor. The glycosylated NS1 exists as a membrane‑associated dimer after translocation into the endoplasmic reticulum lumen, where it is essential for viral genome replication (2). The secreted hexamer NS1 is involved in immune evasion and pathogenesis; it is identified as a potential diagnostic marker for early detection of the virus infections (2). Mature viral YFV NS1 contains 352 amino acids (afa) and shares high structural similarity to other flavivirus NS1 proteins, such as DENV and ZIKV.

References