Recombinant Vaccinia Virus B18R / B19R Protein (His Tag)

Specifications

Catalog number

PKSV030257

Size / count

100 µg

Dry ice

No

Hazardous

No

Discontinued

No

Background

B18R is a type I interferon (IFN) -binding protein, which is encoded by the B18R open reading frame in the WR (WesternReserve) strain of vaccinia virus. Itis alsoknownasB19RintheCopenhagenstrainofVaccinia. B18R exists in a soluble and a membrane-bound form. As a type I IFN receptor, B18R has a broad species specificity. It has high affinity for human IFN-alpha and also binds rabbit, bovine, rat, pig, and mouse IFN-alpha and IFN-beta. It has been shown that secreted B18R binds to uninfected and infected cells. It presents at the cell surface and protects cells from the antiviral state induced by IFN-alpha and IFN-beta. Binding of soluble recombinant B18R protects cultured cells from IFN and allows vaccinia virus replication.

Synonyms

B19R; Vaccinia Virus B18R

UniProt

P25213

Accession Number

P25213

Expression System

Baculovirus-Insect Cells

Tag

C-His

Sequence

Met1-Glu351

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method.

Purity

> 90 % as determined by reducing SDS-PAGE.

Bioactivity

Not validated for activity

Reconstitution

Please refer to the printed manual for detailed information.

Shipping Conditions

This product is provided as lyophilized powder which is shipped with ice packs.

Storage Conditions

Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Calculated Molecular Weight

39.8 kDa

Observed Molecular Weight

46 kDa

Species

Vaccinia Virus