Rat B7-2/CD86 Antibody

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Product Details
Supplemental Products

Rat B7-2/CD86 Antibody Summary

Species Reactivity
Detects rat B7‑2/CD86 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross‑reactivity with recombinant mouse (rm) B7-1, recombinant rat B7-1, rmB7-2, rmB7-H1, rmB7-H2, rmB7-H3, or rmPD-L2 is observed.
Monoclonal Mouse IgG2B Clone # 199602
Protein A or G purified from hybridoma culture supernatant
Mouse myeloma cell line NS0-derived recombinant rat B7‑2/CD86
Accession # NP_064466
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
Recombinant Rat B7‑2/CD86 Fc Chimera (Catalog # 1340-B2)

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.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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: B7-2/CD86

For optimal T cell expansion and activation, a signal induced by the engagement of the T cell receptor and a co-stimulatory signal(s) through distinct T cell surface molecules are required. Members of the B7 superfamily of counter-receptors were identified by their ability to interact with co-stimulatory molecules found on the surface of T cells. Members of the B7 superfamily are type I membrane proteins and include B7-1 (CD80), B7-2 (CD86), B7-H1 (PD-L1), B7-H2 (B7RP-1), B7-H3, and PD-L2 (1). B7-2 is expressed constitutively at low levels on most antigen presenting cells (APC) and is rapidly upregulated upon cell activation (2). T cells express two different receptors (CD28 and CTLA-4) capable of binding both B7-1 and B7-2 (2). B7-2 binds to CD28 with the low affinity but binds to CTLA-4 with intermediate affinity. In contrast, B7-1 binds CD28 with intermediate affinity and CTLA-4 with high affinity. Additionally, these molecules have different kinetics for binding CD28 and CTLA-4 with B7-2 having a higher-binding dissociation kinetics (1). Engagement of CD28 by B7-2 increases T cell proliferation and IL-2, IL-4, and IFN-gamma production, thereby enhancing the immune response (3). In contrast, engagement of CTLA-4 is involved in the down-regulation of the immune response (4). Rat B7-2 cDNA encodes a 313 amino acid (aa) precursor protein containing a an extracellular domain, a transmembrane domain, and a cytoplasmic domain. Rat and human B7-1 share 54% aa identity.

  1. Coyle, A.J. and J-C. Gutierrez-Ramos (2001) Nature Immunol. 2:203.
  2. Sharpe, A.H. and G.J. Freeman (2002) Nature Reviews 2:116.
  3. Freeman, G.J. et al. (1995) Immunity 5:523.
  4. Walunas, T.L. et al. (1994) Immunity 1:405.
Entrez Gene IDs
942 (Human); 12524 (Mouse); 56822 (Rat); 102147235 (Cynomolgus Monkey)
Alternate Names
Activation B7-2 antigen; B70; B7-2 antigen; B72; B7-2; B-lymphocyte activation antigen B7-2; BU63; CD28 antigen ligand 2; CD28LG2B7-2 antigen); CD86 antigen; CD86 molecule; CD86; CTLA-4 counter-receptor B7.2; FUN-1; LAB72; MGC34413; T-lymphocyte activation antigen CD86

Product Datasheets


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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

Mouse IgG2B Antibody

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