A DNA sequence encoding the extracellular domain (Met 1-Gly 245) of human IFN-gammaR1 pre-protein (NP_000407.1) was expressed, fused with a polyhistidine tag at the C-terminus.
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Background
The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. CD119 (cluster of differentiation 119), also known as IFNGR1 ( interferon gamma receptor 1), is part of the heterodimeric gamma interferon receptor which consists of IFNGR1 (CD119) and IFNGR2. The IFNGR1 gene encodes the ligand-binding chain (alpha) of the interteron receptor while IFNGR gene encodes the non-ligand binding partner. The ability of the interferon-γ was achieved through binding to the interferon receptor CD119. After binding, the products of activated T-lymphocytes interferon-γ exerts antiviral activity, growth inhibitory effect, and several immune- regulatory activities on a variety of cell types.
Reactivity
Human
Tag
C-His
Formulation
Lyophilized from sterile PBS, pH 7.4
Host
HEK293 Cells
Accession Number
NP_000407.1
Endotoxin Level
< 1.0 EU per ug of the protein as determined by the LAL method.
Bioactivity
Measured by its ability to inhibit rhIFNgamma mediated protection of WISH cells infected with vesicular stomatitis virus(VSV).The ED50 for this effect is typically 2-8 ug/mL.
Mol Weight
27.3 kDa
Mw(kda)
27.3 kDa
Sequence Info
Met 1-Gly 245
Shipping
This product is provided as lyophilized powder which is shipped with ice packs.
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.