Mouse B7-H2 / ICOSLG Protein, His Tag

ICOS ligand (ICOSLG) is also known as B7 homolog 2 (B7-H2), B7-related protein 1 (B7RP-1) and CD antigen CD275, which belongs to the immunoglobulin superfamily and BTN/MOG family. ICOSLG contains one Ig-like C2-type (immunoglobulin-like) domain and one Ig-like V-type (immunoglobulin-like) domain. Isoform 1 is widely expressed, while isoform 2 is detected only in lymph nodes, leukocytes and spleen. B7-H2 is ligand for the T-cell-specific cell surface receptor ICOS. B7-H2 acts as a costimulatory signal for T-cell proliferation and cytokine secretion and induces also B-cell proliferation and differentiation into plasma cells. B7-H2 could play an important role in mediating local tissue responses to inflammatory conditions, as well as in modulating the secondary immune response by co-stimulating memory T-cell function.

Product Specifications

Background

Specifications

This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 28.2 kDa. The protein migrates as 45-55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Accession Number

Q9JHJ8-1

Expression Region

Glu 47 - Lys 279

Host

HEK293

Target

B7-H2

Conjugation

Unconjugated

Tag

C-10xHis

Source

Mouse

Stability

-20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Endotoxin

1.0 EU per μg

Purity

90%

Bioactivity

Immobilized Mouse B7-H2, His Tag (Cat. No. B72-M52H7) at 1 μg/mL (100 μL/well) can bind Mouse ICOS (C137S, C138S), Fc Tag (Cat. No. ICS-M5259) with a linear range of 1-78 ng/mL (QC tested).