Please refer to the printed manual for detailed information.
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.
Reactivity
Vaccinia Virus
Tag
C-His
Description
A DNA sequence encoding the B18R (P25213) (Met1-Glu351) was expressed with a C-terminal polyhistidine tag.
Formulation
Lyophilized from sterile PBS, pH 7.4.Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual.
Host
Baculovirus-Insect Cells
Accession Number
P25213
Endotoxin Level
< 1.0 EU per ?g of the protein as determined by the LAL method
Mol Weight
39.8KDa
Mw(kda)
39.8KDa
Sequence Info
Met1-Glu351
Shipping
In general, recombinant proteins are provided as lyophilized powder which are shipped with ice bag. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stotage Note
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.