Human CD155/PVR Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human CD155/PVR in direct ELISAs and Western blots.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human CD155/PVR
    Gly27-Asn343
    Accession # AAH15542
  • Formulation
    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.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.25 µg/mL
    See below
  • Simple Western
    2.5 µg/mL
    See below
  • Immunocytochemistry
    5-15 µg/mL
    Immersion fixed human peripheral blood mononuclear cells
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.
Data Examples
Detection of Human CD155/PVR by Western Blot. Western blot shows lysates of human heart tissue, HT1080 human fibrosarcoma cell line, and HUVEC human umbilical vein endothelial cells. PVDF membrane was probed with 0.25 µg/mL of Goat Anti-Human CD155/PVR Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2530) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for CD155/PVR at approximately 75 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of Human CD155/PVR by Simple WesternTM. Simple Western lane view shows lysates of HT1080 human fibrosarcoma cell line and HUVEC human umbilical vein endothelial cells, loaded at 0.2 mg/mL. A specific band was detected for CD155/PVR at approximately 128 kDa (as indicated) using 2.5 µg/mL of Goat Anti-Human CD155/PVR Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2530) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the
12-230 kDa separation system.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    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: CD155/PVR

CD155 [also known as PVR (poliovirus receptor) and Necl-5 (nectin-like molecule-5)] is a 70 kDa type I transmembrane (TM) glycoprotein that is a member of the nectin-like (Necl) family of nectin-related molecules (1). Like nectins, Necl molecules are Ig superfamily members that contain three Ig-like extracellular domains, a TM segment, and a cytoplasmic tail. Unlike nectins, Necl molecules cannot interact with cytoplasmic afadin (1). While Nectins serve as cell adhesion molecules, the actual functions of most Necls are yet-to-be determined. CD155/PVR was originally isolated based on its ability to mediate polio virus attachment to host cells (2, 3). The full-length (or CD155 alpha isoform) is synthesized as a 417 amino acid (aa) precursor that contains a 20 aa signal sequence, a 323 aa extracellular region, a 24 aa TM segment and a 50 aa cytoplasmic tail. The extracellular region contains one N-terminal V-type and two C2-type Ig-like domains (2, 3). The V‑type domain mediates polio virus binding (4). Three other isoforms exist, all of which retain the Ig-like domains. CD155δ is transmembrane with a shortened cytoplasmic tail of 25 aa. CD155 beta (352 aa) and CD155 gamma (344 aa) are 60‑65 kDa soluble forms that show removal of the TM segment and surrounding amino acids (2, 5). The soluble forms will bind the polio virus (due to the presence of the V-type Ig domain) but afford no protection against polio infection because of low circulating levels (5). CD155 has been demonstrated to bind vitronectin, nectin-3, and DNAM-1 (6‑8). DNAM-1 binding promotes monocyte migration and NK cell killing. CD155 is expressed in all normal tissues and is highly expressed in tumor cells of epithelial and neuronal origin.

  • References:
    1. Takai, Y. et al. (2003) Cancer Sci. 94:655.
    2. Mendelsohn, C.L. et al. (1989) Cell 56:855.
    3. Koike, H. et al. (1990) EMBO J. 9:3217.
    4. Koike, S. et al. (1991) Proc. Natl. Acad. Sci. USA 88:4104.
    5. Baury, B. et al. (2003) Biochem. Biophys. Res. Commun. 309:175.
    6. Mueller, S. and E. Wimmer (2003) J. Biol. Chem. 278:31251.
    7. Reymond, N. et al. (2004) J. Exp. Med. 199:1331.
    8. Lange, R. et al. (2001) Virology 285:218.
  • Long Name:
    Poliovirus Receptor
  • Entrez Gene IDs:
    5817 (Human); 52118 (Mouse); 25066 (Rat)
  • Alternate Names:
    CD155 antigen; CD155; HVED; NECL5; Necl-5; nectin-like 5; Nectin-like protein 5; poliovirus receptor; PVR; PVS; PVSFLJ25946; Tage4
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