Purified Rat Anti-Mouse CD86
Clone GL1 (RUO)
- Brand BD Pharmingen™
- Alternative Name B7-2; Ly-58; Cd28l2; Early T-cell costimulatory molecule 1; ETC1; MB7; CLS1
- Concentration 0.5 mg/ml
- Isotype Rat LOU, also known as Louvain, LOU/C, LOU/M IgG2a, κ
- Reactivity Mouse (QC Testing)
Flow cytometry (Routinely Tested)
Immunohistochemistry-frozen (Tested During Development)
Immunoprecipitation, Blocking, Electron microscopy, Immunofluorescence (Reported)
- Immunogen Mouse (CBA/Ca) LPS-activated splenic B Cells
- Entrez Gene ID 12524
- Storage Buffer Aqueous buffered solution containing ≤0.09% sodium azide.
- Regulatory Status RUO
Regulatory Status Legend
The GL1 antibody specifically recognizes the B7-2 (CD86) costimulatory molecule expressed on a broad spectrum of leukocytes, including B lymphocytes, T lymphocytes, thioglycollate-induced peritoneal macrophages, dendritic cells and astrocytes. CD86 is expressed at low levels by freshly explanted peripheral B and T cells, and its expression is substantially increased by a variety of T cell- and B cell-specific stimuli with a peak expression after 18-42 hours of culture. In contrast to most naive CD4+ T cells, memory CD4+ T cells express B7-2, both at the mRNA and protein level. CD86, a ligand for CD28 and CD152 (CTLA-4), is one of the accessory molecules that plays an important role in T cell-B cell costimulatory interactions. It has been shown to be involved in immunoglobulin class-switching and triggering of mouse NK cell-mediated cytotoxicity. CD80 (B7-1) is an alternate ligand for CD28 and CD152 (CTLA-4). GL1 antibody reportedly blocks MLR and stimulation of T cells by natural antigen-presenting cells. In addition, a mixture of anti-B7-1 and anti B7-2 (GL1) mAbs reportedly inhibits the in vitro interaction of CTLA-4 with its ligand and the in vivo priming of cytotoxic T lymphocytes.
This antibody is routinely tested by flow cytometric analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.
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Preparation and Storage
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
Store undiluted at 4°C.
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
- Sodium azide is a reversible inhibitor of oxidative metabolism; therefore, antibody preparations containing this preservative agent must not be used in cell cultures nor injected into animals. Sodium azide may be removed by washing stained cells or plate-bound antibody or dialyzing soluble antibody in sodium azide-free buffer. Since endotoxin may also affect the results of functional studies, we recommend the NA/LE (No Azide/Low Endotoxin) antibody format, if available, for in vitro and in vivo use.
Mouse BD Fc Block™ purified anti-CD16/CD32 mAb 2.4G2 (Cat. No. 553141/553142) may help to reduce non-specific binding of GL1 antibody to cells bearing Fcγ-receptors. When performing immunofluorescent staining in the presence of Mouse BD Fc Block™, a second step antibody which does not cross-react with the 2.4G2 antibody (Rat IgG2b, κ) must be used. We have found that FITC-conjugated mouse anti-rat IgG2a (clone RG7/1.30, Cat. No. 553896) works well for this purpose.
Immunohistochemistry: For IHC, we recommend the use of purified GL1 mAb in our special formulation for immunohistochemistry, Cat. No. 550542).