Human B7-H2 Biotinylated Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human B7‑H2 in Western blots. In Western blots, less than 1% cross-reactivity with recombinant human B7-H1 and recombinant mouse B7-H2 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human B7-H2
    Asp19-Ser258
    Accession # O75144
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
  • Label
    Biotin
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Human B7-H2 Fc Chimera (Catalog # 165-B7)
  • Flow Cytometry
    2.5 µg/106 cells
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of B7‑H2 in U937 Human Cell Line by Flow Cytometry. U937 human histiocytic lymphoma cell line was stained with Goat Anti-Human B7‑H2 Biotinylated Antigen Affinity‑purified Polyclonal Antibody (Catalog # BAF165, filled histogram) or isotype control antibody (Catalog # BAF108, open histogram), followed by Streptavidin-Phycoerythrin (Catalog # F0040).
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it 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 human 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:
    1. Coyle, A.J. and J.C. Gutierrez-Ramos (2001) Nat. Immunol. 2:203.
    2. Ling, V. et al. (2000) J. Immunol. 164:1653.
    3. Wang, S. et al. (2000) Blood 96:2808.
    4. Brodie, D. et al. (2000) Curr. Biol. 10:333.
    5. Mages, H.W. et al. (2000) Eur. J. Immunol. 30:1040.
    6. Swallow, M.M. et al. (1999) Immunity 11:423.
    7. Yoshinaga, S.K. et al. (1999) Nature 402:827.
  • Long Name:
    B7 Homolog 2
  • Entrez Gene IDs:
    23308 (Human); 50723 (Mouse); 102132485 (Cynomolgus Monkey)
  • Alternate Names:
    B7H2; B7-H2; B7H2B7 homolog 2; B7-H2B7-related protein 1; B7RP-1; B7RP1B7-like protein Gl50; B7RP-1LICOS; CD275 antigen; CD275; GL50; GL50transmembrane protein B7-H2 ICOS ligand; ICOSL; ICOS-L; ICOSLG; inducible T-cell co-stimulator ligand; KIAA0653ICOS ligand
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Normal Goat IgG Biotinylated Control

Ctrl BAF108 19
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Staining Reagents
Description Application Cat# Citations Images  

Streptavidin-Phycoerythrin

Flow F0040 7
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Streptavidin-Alkaline Phosphatase

ELISA(Det) AR001 2
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NorthernLights Streptavidin NL557

Flow, IHC, ICC NL999 4
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NorthernLights Streptavidin NL637

Flow, IHC, ICC NL998 2
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NorthernLights Streptavidin NL493

Flow, IHC, ICC NL997 1
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Streptavidin-Allophycocyanin

Flow F0050 1
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Avidin-Fluorescein

Flow F0030 1
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Supplemental Cell Selection Products
Description Application Cat# Citations Images  

MagCellect Streptavidin Ferrofluid

MAG999B 4
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MagCellect Streptavidin Ferrofluid

MAG999 4
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Supplemental ELISA Products
Description Application Cat# Citations Images  

Streptavidin-HRP

ELISA DY998 44
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EvenCoat Streptavidin Coated Plates

ELISA CP004
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EvenCoat Streptavidin Coated Plates, 5 Pack

ELISA CP003 3
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