PD-1 Antibody (1015846) [Unconjugated]

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PD‑1 was detected in immersion fixed paraffin-embedded sections of human tonsil using Mouse Anti-Human PD‑1 Monoclonal Antibody (Catalog # MAB10864) at 5 µg/mL for 1 hour at room temperature followed by ...read more
Western blot shows lysates of human tonsil tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human PD‑1 Monoclonal Antibody (Catalog # MAB10864) followed by HRP-conjugated Anti-Mouse IgG Secondary ...read more
Recombinant Human PD‑1 protein was serially diluted 2-fold and captured by Rabbit Anti-Human PD‑1 Monoclonal Antibody (Catalog # MAB10863) coated on a Clear Polystyrene Microplate (Catalog # DY990). Mouse ...read more
In a functional ELISA, 0.09-0.72 µg/mL of this antibody (green line) will block 50% of the binding of 5 µg/mL of Recombinant Human PD-L1/B7-H1 Fc Chimera (orange line, Catalog # 156-B7) to immobilized Recombinant ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications WB, ELISA, IHC, B/N
Clone
1015846
Clonality
Monoclonal
Host
Mouse
Conjugate
Unconjugated

Order Details

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Catalog# & Formulation Size Price

PD-1 Antibody (1015846) [Unconjugated] Summary

Immunogen
Human embryonic kidney cell HEK293-derived human PD-1
Leu25-Thr168
Accession # Q15116
Specificity
Detects human PD-1 in direct ELISAs.
Source
N/A
Isotype
IgG1
Clonality
Monoclonal
Host
Mouse
Purity Statement
Protein A or G purified from cell culture supernatant
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Blockade of Receptor-ligand Interaction 0.09-0.72 ug/mL
  • ELISA
  • Immunohistochemistry 5-25 ug/mL
  • Western Blot 2 ug/mL

Packaging, Storage & Formulations

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.
Buffer
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.
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for PD-1 Antibody (1015846) [Unconjugated]

  • CD279 antigen
  • CD279
  • hPD-1
  • PD1
  • PD-1
  • PD1hPD-l
  • PDCD1
  • programmed cell death 1
  • programmed cell death protein 1
  • Protein PD-1
  • SLEB2

Background

Programmed Death-1 receptor (PD-1), also known as CD279, is type I transmembrane protein belonging to the CD28 family of immune regulatory receptors (1). Other members of this family include CD28, CTLA-4, ICOS, and BTLA (2-5). Mature human PD-1 consists of a 148 amino acid (aa) extracellular region (ECD) with one immunoglobulin-like V-type domain, a 24 aa transmembrane domain, and a 95 aa cytoplasmic region. The human PD-1 ECD shares 65% aa sequence identity with the mouse PD-1 ECD. The cytoplasmic tail contains two tyrosine residues that form the immunoreceptor tyrosine-based inhibitory motif (ITIM) and immunoreceptor tyrosine-based switch motif (ITSM) that are important for mediating PD-1 signaling. PD-1 acts as a monomeric receptor and interacts in a 1:1 stoichiometric ratio with its ligands PD-L1 (B7-H1) and PD-L2 (B7-DC) (6, 7). PD‑1 is expressed on activated T cells, B cells, monocytes, and dendritic cells while PD-L1 expression is constitutive on the same cells and also on nonhematopoietic cells such as lung endothelial cells and hepatocytes (8, 9). Ligation of PD-L1 with PD-1 induces co-inhibitory signals on T cells promoting their apoptosis, anergy, and functional exhaustion (10). Thus, the PD-1: PD-L1 interaction is a key regulator of the threshold of immune response and peripheral immune tolerance (11). Finally, blockade of the PD-1: PD-L1 interaction by either antibodies or genetic manipulation accelerates tumor eradication and shows potential for improving cancer immunotherapy (12, 13, 14).
  1. Ishida, Y. et al. (1992) EMBO J. 11:3887.
  2. Sharpe, A.H. and G. J. Freeman (2002) Nat. Rev. Immunol. 2:116.
  3. Coyle, A. and J. Gutierrez-Ramos (2001) Nat. Immunol. 2:203.
  4. Nishimura, H. and T. Honjo (2001) Trends Immunol. 22:265.
  5. Watanabe, N et al. (2003) Nat. Immunol. 4:670.
  6. Zhang, X. et al. (2004) Immunity 20:337.
  7. Lázár-Molnár, E. et al. (2008) Proc. Natl. Acad. Sci. USA 105:10483.
  8. Nishimura, H et al. (1996) Int. Immunol. 8:773.
  9. Keir, M.E. et al. (2008) Annu. Rev. Immunol. 26:677.
  10. Butte, M.J. et al. (2007) Immunity 27:111.
  11. Okazaki, T. et al. (2013) Nat. Immunol. 14:1212.
  12. Iwai, Y. et al. (2002) Proc. Natl. Acad. Sci. USA 99: 12293.
  13. Nogrady, B. (2014) Nature 513:S10.
  14. Swaika, A. et al. (2015) Mol. Immunol. 67: 4

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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