Human B7-H2 Antibody
R&D Systems, part of Bio-Techne | Catalog # MAB1651
Key Product Details
Species Reactivity
Human
Applications
Neutralization, Western Blot
Label
Unconjugated
Antibody Source
Monoclonal Mouse IgG2B Clone # 136716
Product Specifications
Immunogen
Mouse myeloma cell line NS0-derived recombinant human B7-H2
Asp19-Ser258
Accession # O75144
Asp19-Ser258
Accession # O75144
Specificity
Detects human B7-H2 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) B7-1, rhB7-2, rhB7-H1, rhB7-H3, recombinant mouse (rm) B7-H2, or rmPD-L2 is observed.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG2B
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Scientific Data Images for Human B7-H2 Antibody
Cell Proliferation Induced by B7‑H2 and Neutralization by Human B7‑H2 Antibody.
In the presence of Human CD3e Monoclonal Antibody (20 ng/mL, Catalog # MAB100), Recombinant Human B7-H2 Fc Chimera (Catalog # 165-B7) stimulates proliferation in PHA-activated human T cells in a dose-dependent manner (orange line). Under these conditions, proliferation elicited by Rec-ombinant Human B7-H2 Fc Chimera (3 µg/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human B7-H2 Monoclonal Antibody (Catalog # MAB1651). The ND50 is typically 1-4 µg/mL.Applications for Human B7-H2 Antibody
Application
Recommended Usage
Western Blot
1 µg/mL
Sample: Recombinant Human B7-H2 Fc Chimera (Catalog # 165-B7)
Sample: Recombinant Human B7-H2 Fc Chimera (Catalog # 165-B7)
Neutralization
Measured by its ability to neutralize B7-H2-induced proliferation in PHA-activated human T cells. Wang, S. et al. (2000) Blood 96:2808. The Neutralization Dose (ND50) is typically 1-4 µg/mL in the presence of 3 µg/mL Recombinant Human B7-H2 Fc Chimera and 20 ng/mL Human CD3 epsilon Monoclonal Antibody .
Formulation, Preparation, and Storage
Purification
Protein A or G purified from hybridoma culture supernatant
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: B7-H2
Human B7-H2, also called B7RP-1, B7h, LICOS, and GL50, is a 60 kDa member of the B7 family of immune costimulatory proteins, which includes B7-1, B7-2, B7-H1 (PD-L1), PD-L2, and B7-H3. B7 proteins are members of the immunoglobulin (Ig) superfamily; the extracellular domains contain 2 Ig-like domains and all members have short cytoplasmic domains. Family members share about 20‑25% amino acid identity. Within the extracellular domain, human B7-H2 shares 49% and 54% amino acid sequence identity with mouse and rat B7-H2, respectively. B7-H2 has been identified as the ligand for ICOS, a member of the CD28 family of costimulatory receptors. Human B7-H2 is a 309 amino acid (aa) protein with a putative 18 aa signal peptide, a 239 aa extracellular domain, an 18 aa transmembrane region, and a 33 aa cytoplasmic domain. Human B7-H2 is expressed constitutively on resting B cells, dendritic cells, and at low levels on monocytes. The B7-H2/ICOS interaction appears to play roles in T cell dependent B cell activation and Th differentiation.
References
- Coyle, A.J. and J.C. Gutierrez-Ramos (2001) Nat. Immunol. 2:203.
- Ling, V. et al. (2000) J. Immunol. 164:1653.
- Wang, S. et al. (2000) Blood 96:2808.
- Brodie, D. et al. (2000) Curr. Biol. 10:333.
- Mages, H.W. et al. (2000) Eur. J. Immunol. 30:1040.
- Swallow, M.M. et al. (1999) Immunity 11:423.
- Yoshinaga, S.K. et al. (1999) Nature 402:827.
Long Name
B7 Homolog 2
Alternate Names
B7H2, B7RP-1, CD275, GL50, ICOSL, ICOSLG
Gene Symbol
ICOSLG
UniProt
Additional B7-H2 Products
Product Documents for Human B7-H2 Antibody
Product Specific Notices for Human B7-H2 Antibody
For research use only
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