Recombinant Human CD27 Ligand/TNFSF7 Protein, CF

    
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  • Purity
    >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
  • Endotoxin Level
    <0.10 EU per 1 μg of the protein by the LAL method.
  • Activity
    Measured by its ability to induce IL-8 secretion in HT1080 human fibrosarcoma cells transfected with human CD27. The ED50 for this effect is 5-25 ng/mL in the presence of Mouse Anti-Hemagglutinin/HA Peptide Monoclonal Antibody (Catalog # MAB060).
  • Source
    Human embryonic kidney cell, HEK293-derived human CD27 Ligand/TNFSF7 protein

    HA
    (YPYDVPDYA)

    GCN4-IZGGGSGGGSGGGSHuman CD27 Ligand
    (Gln39-Pro193)
    Accession # P32970
    N-terminusC-terminus
  • Accession #
  • N-terminal Sequence
    Analysis
    Tyr
  • Structure / Form
    Noncovalently-linked homotrimer
  • Predicted Molecular Mass
    23 kDa
  • SDS-PAGE
    24-32 kDa, reducing conditions
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9328-CL
 
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
 
Reconstitution Reconstitute at 200 μg/mL in 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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
 
Data Image
Recombinant Human CD27 Ligand/TNFSF7 (Catalog # 9328-CL)induces IL-8 secretion in HT1080 human fibrosarcoma cells transfected withHuman CD27. The ED50 for this effect is 5-25 ng/mL.
Background: CD27 Ligand/TNFSF7
CD27 ligand (CD27L), also named CD70, is a type II transmembrane glycoprotein belonging to the TNF superfamily (TNFSF) and has been designated TNFSF7 (1, 2). Human CD27L cDNA encodes a 193 amino acid (aa) residue protein with a 17 aa N-terminal cytoplasmic domain, a 21 aa transmembrane domain and a 155 aa C-terminal extracellular domain. Human and mouse CD27L share approximated 56% aa sequence identity. CD27L is expected to exist as non-covalent homotrimers. CD70 is constitutively expressed on medullary thymic epithelial cells (mTECs) in human and mouse and on certain unconventional APCs in the mouse intestine (3). CD70 is also exclusively expressed on DCs (5), B cells (5), conventional- and regulatory T cells (6) and NK cells (7) but only after their activation. CD70 expression is highly regulated by antigen through Pattern Recognition Receptors (PRRs), T cell and B cell antigen receptors (8), and further tuned by cytokines such as IL-1 alpha,
IL-12, TNF alpha, prostaglandin E2 and by CD28 and CD40 co-stimulation (9).  Ligation of CD27 on T cells provides co-stimulatory signals and promotes T cell proliferation, antigen-specific CD4+ and CD8+ T cells clonal expansion, effector & memory T-cell differentiation, and effector T-cell survival & T-cell memory formation (10-12). Ligation of CD27 on mouse B cell and NK cells promotes the B- and NK-cell response by supporting B-cell expansion in the germinal center and increasing IFN-gamma levels in NK cells, in turn enhancing NK cytotoxic capability, which can contribute to tumor control (13,14). Overall, CD27/CD70 co-stimulatory system promote T, B and NK cell responses and particularly the CTL response, and is a target in cancer immunotherapy (15).
  • References:
    1. Bowman MR. et al. J Immunol. (1994) 152:1756.
    2. Croft, M. (2003) Nature Reviews Immunol. 3:609.
    3. Tesselaar K. et al. (2003) J. Immunol. 170:33.
    4. Sanchez PJ. et al. (2007) J. Immunol. 178:1564.
    5. Lens SM. et al. (1998) Semin. Immunol. 10:491.
    6. Koenen HJ. et al. (2005) J. Immunol. 174:7573.
    7. Hintzen RQ. et al. (1994) Int. Immunol. 6:477.
    8. Borst J. et al. (2005) Curr. Opin. Immunol. 17:275.
    9. Krause P. et al. (2009) Blood 113:2451.
    10. Van Gisbergen K. et al. (2011) Immunity 35:97.
    11. Peperzak V. et al. (2010) J. Immunol. 185:6670.
    12. Pen JJ. et al. (2013) J. Immunol. 191:1976.
    13. Shin CA, et al. (2016) Oncotarget 7:46173.
    14. Takeda K. et al. (2000) J. Immunol. 164:1741.
    15. Wajant H. (2016) Expert Opin Ther Targets 20:959.
  • Entrez Gene IDs:
    970 (Human); 21948 (Mouse)
  • Alternate Names:
    CD27 Ligand; CD27-L; CD27LCD27 ligand; CD27LG; CD70 molecule; CD70; Ki-24 antigen; surface antigen CD70; TNFSF7; TNFSF7CD70 antigen; tumor necrosis factor (ligand) superfamily, member 7; Tumor necrosis factor ligand superfamily member 7
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Reconstitution Buffers
Description Application Cat# Citations Images  

Reconstitution Buffer 1 (PBS)

RB01
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