• Species Reactivity

  Mouse

• Specificity

  Detects mouse PD-L2/B7-DC in direct ELISAs and Western blots. In direct ELISAs and Western blots, 100% cross-reactivity with recombinant human (rh) PD-L2 is observed and no cross-reactivity with rhB7-1, recombinant mouse (rm) B7-1, rmB7-2, rmB7-H1, rmB7-H2, rmB7‑H3, or rmB7-H4 is observed.

• Source

  Monoclonal Rat IgG2a Clone # 168633

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant mouse PD-L2/B7-DC    
  Met1-Arg219    
  Accession # Q9WUL5

• Formulation

  Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

• Label

  Alexa Fluor 750

Applications

• Recommended    
  Concentration

  Sample

• Flow Cytometry

  0.25-1 µg/10    ⁶ cells

  HEK293 human embryonic kidney cell line transfected with mouse PD-L2/B7-DC

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: PD-L2/B7-DC

Mouse Programmed Death Ligand 2 (PD-L2), also named B7DC and butyrophilin-like protein, is a member of the B7 family of proteins that provide signals for regulating T-cell activation and tolerance (1-4). Other family members include B7-1, B7-2, B7-H2, PD-L1 (B7-H1), and B7-H3. B7 proteins are immunoglobulin (Ig) superfamily members with extracellular Ig-V-like and Ig-C-like domains and short cytoplasmic domains. Among the family members, they share from 20-40% amino acid (aa) sequence identity. The cloned mouse PD-L2 cDNA encodes a 247 aa type I membrane precursor protein with a putative 20 aa signal peptide, a 199 aa extracellular region containing one V-like and one C-like Ig domain, a 23 aa transmembrane region, and only a 5 aa cytoplasmic domain. The extracellular domains of mouse and human PD-L2 share approximately 72% aa sequence identity. PD-L2 is one of two ligands for programmed death-1 (PD-1), a member of the CD28 family of immunoreceptors. The other identified ligand is PD-L1. Mouse PD-L1 and PD-L2 share approximately 34% aa sequence identity and have similar functions. PD-L2 is constitutively expressed in lymphoid and non-lymphoid organs (1-4). The expression of PD-L2 is detected on dendritic cells, thymic epithelial cells and IFN-gamma treated monocytes. PD-L2 expression is also upregulated in a variety of tumor cell lines. On previously activated T cells, PD-L2 interaction with PD-1 inhibits TCR-mediated proliferation and cytokine production, suggesting an inhibitory role in regulating immune responses. In contrast, a co-stimulatory function for the PD-1 ligands on resting T cells has also been reported.

• References:

1. Latchman, Y. et al. (2001) Nature Immun. 2:261.

2. Tseng, B.S-Y. et al. (2001) J. Exp. Med. 193:839.

3. Sharpe, A.H. and G.J. Freeman (2002) Nat. Rev. Immunol. 2:116.

4. Coyle, A. and J. Gutierrez-Ramos (2001) Nat. Immunol. 2:203.

• Long Name:

  Programmed Death-1 Ligand-2

• Entrez Gene IDs:

  80380 (Human); 58205 (Mouse); 102146227 (Cynomolgus Monkey)

• Alternate Names:

  B7-DC; bA574F11.2; Btdc; Butyrophilin B7-DC; Butyrophilin-like Protein; CD273 antigen; CD273; CD273PD-1 ligand 2; MGC142240; PD-1-ligand 2; PDCD1L2MGC142238; PDCD1LG2; PDL2; PD-L2; PDL2B7DC; PD-L2PDCD1 ligand 2; programmed cell death 1 ligand 2; Programmed death ligand 2