Recombinant Human PD-L2/B7-DC Fc Chimera Protein, CF Summary
Product Specifications
| Human PD-L2 (Leu20-Pro219) Accession # Q9BQ51.2 |
IEGRMD | Human IgG1 (Pro100-Lys330) |
| N-terminus | C-terminus | |
Analysis
Product Datasheets
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
1224-PL
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/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.
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Scientific Data
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Recombinant Human PD-L2/B7-DC Fc Chimera (Catalog # 1224-PL) has a molecular weight (MW) of 120.3 kDa as analyzed by SEC-MALS, suggesting that this protein is a homodimer. MW may differ from predicted MW due to post-translational modifications (PTMs) present (i.e. Glycosylation).
Reconstitution Calculator
Background: PD-L2/B7-DC
Programmed Death Ligand 2 (PD-L2), also known as B7-DC and butyrophilin-like protein, is a member of the B7 family of proteins that provide signals for regulating T-cell activation and tolerance (1). Mature human PD-L2 consists of a 201 amino acid (aa) extracellular domain (ECD) with one V-like and one C-like Ig domain, a 21 aa transmembrane segment, and a 32 aa cytoplasmic domain (2, 3). Within the ECD, mouse and human PD-L2 share 72% aa sequence identity. Alternative splicing generates additional isoforms that lack the second Ig-like domain and may be substituted and truncated following the first Ig-like domain (4). PD-L2 is expressed on dendritic cells, subsets of activated CD4+ and CD8+ T cells, and memory B cells that differentiate into plasma cells (3, 5, 6). At inflammatory sites such as rheumatoid arthritis, allergen exposure, and virus infection, PD-L2 is up-regulated on synoviocytes, infiltrating macrophages, dendritic cells, and airway epithelial cells (7-11). PD-L2, along with B7-H1/PD-L1, binds to T cell PD-1 where it promotes IFN-gamma production and CD40 Ligand up-regulation while inhibiting IL-4 production (2, 3, 12, 13). In addition, PD-L2 binds to RGM-B on macrophages and alveolar epithelial cells, supporting respiratory immune tolerance (14). In asthma, PD-L2 suppresses IL-5 and IL-13 production, promotes IL-12 production by dendritic cells, and supports allergen-induced airway hyper-responsiveness and mucus production (9, 11).
- Ceeraz, S. et al. (2013) Trends Immunol. 34:556.
- Latchman, Y. et al. (2001) Nat. Immunol. 2:261.
- Tseng, S.-Y. et al. (2001) J. Exp. Med. 193:839.
- He, X.-H. et al. (2004) Acta Biochim. Biophys. Sinica 36:284.
- Messal, N. et al. (2011) Mol. Immunol. 48:2214.
- Zuccarino-Catania, G.V. et al. (2014) Nat. Immunol. 15:631.
- Guo, G. et al. (2012) Clin. Rheumatol. 31:271.
- Loke, P. and J.P. Allison (2003) Proc. Natl. Acad. Sci. USA 100:5336.
- Matsumoto, K. et al. (2004) J. Immunol. 172:2530.
- Stanciu, L.A. et al. (2006) J. Infec. Dis. 193:404.
- Lewkowich, I.P. et al. (2013) Mucosal Immun. 6:728.
- Ghiotto, M. et al. (2010) Int. Immunol. 22:651.
- Shin, T. et al. (2003) J. Exp. Med. 198:31.
- Xiao, Y. et al. (2014) J. Exp. Med. 211:943.
Citations for Recombinant Human PD-L2/B7-DC Fc Chimera Protein, CF
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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Citations: Showing 1 - 4
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Inherited PD-1 deficiency underlies tuberculosis and autoimmunity in a child
Authors: M Ogishi, R Yang, C Aytekin, D Langlais, M Bourgey, T Khan, FA Ali, M Rahman, OM Delmonte, M Chrabieh, P Zhang, C Gruber, SJ Pelham, AN Spaan, J Rosain, WT Lei, S Drutman, MD Hellmann, MK Callahan, M Adamow, P Wong, JD Wolchok, G Rao, CS Ma, Y Nakajima, T Yaguchi, K Chamoto, SC Williams, JF Emile, F Rozenberg, MS Glickman, F Rapaport, G Kerner, G Allington, I Tezcan, D Cagdas, FO Hosnut, F Dogu, A Ikinciogul, VK Rao, L Kainulaine, V Béziat, J Bustamante, S Vilarinho, RP Lifton, B Boisson, L Abel, D Bogunovic, N Marr, LD Notarangel, SG Tangye, T Honjo, P Gros, S Boisson-Du, JL Casanova
Nature Medicine, 2021-06-28;0(0):.
Species: Human
Sample Types: Recombinant Protein
Applications: Bioassay -
Characterization of the anti-PD-1 antibody REGN2810 and its antitumor activity in human PD-1 knock-in mice
Authors: E Burova, A Hermann, J Waite, T Potocky, V Lai, S Hong, M Liu, O Allbritton, A Woodruff, Q Wu, A D'Orvillie, E Garnova, A Rafique, W Poueymirou, J Martin, T Huang, D Skokos, J Kantrowitz, J Popke, M Mohrs, D MacDonald, E Ioffe, W Olson, I Lowy, A Murphy, G Thurston
Mol. Cancer Ther, 2017-03-06;0(0):.
Applications: Bioassay -
The coreceptor programmed death 1 inhibits T-cell adhesion by regulating Rap1.
Authors: Azoulay-Alfaguter, Inbar, Strazza, Marianne, Pedoeem, Ariel, Mor, Adam
J Allergy Clin Immunol, 2014-09-18;135(2):564-7.
Species: Human
Sample Types: Whole Cells
Applications: Bioassay -
MHC class II transactivator CIITA is a recurrent gene fusion partner in lymphoid cancers.
Authors: Steidl C, Shah SP, Woolcock BW
Nature, 2011-03-02;471(7338):377-81.
Species: Human
Sample Types: Whole Cells
Applications: Bioassay
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Cells expressing a negative control (left) or hPD-1 mCherry (right) were treated with 0.25 ug of hPD-L2 hIgG1. Cells were analyzed by flow cytometry with binding detected using an anti-human 488 secondary antibody.
