Human PILR-alpha Antibody

Recombinant Monoclonal Antibody.
  
  • Species Reactivity
    Human
  • Specificity
    Detects human PILR-alpha in direct ELISAs.
  • Source
    Recombinant Monoclonal Rabbit IgG Clone # 2175D
  • Purification
    Protein A or G purified from cell culture supernatant
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human PILR-alpha with a C-terminal 6-His tag
    Gln20-Thr196
    Accession # Q9UKJ1
  • 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
    2 µg/mL
    See below
  • Flow Cytometry
    0.25 µg/106 cells
    See below
  • Immunohistochemistry
    3-25 µg/mL
    See below
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 PILR‑ alpha by Western Blot. Western blot shows lysates of human peripheral blood mononuclear cells (PBMCs), human spleen tissue, human lung tissue, CEM human T-lymphoblastoid cell line, and U937 human histiocytic lymphoma cell line. PVDF membrane was probed with 2 µg/mL of Rabbit Anti-Human PILR‑ alpha Monoclonal Antibody (Catalog # MAB64841) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for PILR‑ alpha at approximately 35-50 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of PILR-alpha R in HEK293 Human Cell Line Transfected with Human PILR-alpha and eGFP by Flow Cytometry HEK293 human embryonic kidney cell line transfected with either (A) human PILR-alpha or (B) irrelevant transfectants and eGFP was stained with Rabbit Anti-Human PILR-alpha Monoclonal Antibody (Catalog # MAB64841) followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). Quadrant markers were set based on control antibody staining (Catalog # MAB1050). View our protocol for Staining Intracellular Molecules.
Immunohistochemistry
PILR‑ alpha in Human Tonsil. PILR‑ alpha was detected in immersion fixed paraffin-embedded sections of human tonsil using Rabbit Anti-Human PILR‑ alpha Monoclonal Antibody (Catalog # MAB64841) at 3 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Rabbit IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC003). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to dendritic cells. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 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: PILR-alpha

Paired immunoglobulin-like type 2 receptor alpha (PILRa; also inhibitory receptor PILR-alpha) are 44-50 kDa paired receptors that consist of highly related activating and inhibitory receptors, and are widely involved in the regulation of the immune system. PILR-alpha is thought to act as a cellular signaling inhibitory receptor by recruiting cytoplasmic phosphatases like PTPN6/SHP-1 and PTPN11/SHP-2 via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules. Human PILR-alpha is synthesized as a 303 amino acid (aa) precursor that contains a 19 aa signal sequence, a 178 aa extracellular domain (ECD), a 21 aa transmembrane segment, and an 85 aa cytoplasmic domain. The ECD contains one Ig-like V-type domain and one potential site for N-linked glycosylation. The cytoplasmic domain contains two ITIM motifs (aa 267-272 and 296-301). Alternate splicing generates multiple shorter isoforms. One is TM and possesses a 35 aa substitution for aa 264-303, while others are soluble, and show a deletion of aa 152-224 that may be coupled to the 35 aa substitution noted above, or simply exhibit a 24 aa substitution for aa 152-303. Mature human PILR-alpha is 45% aa identical to mature mouse PILR-alpha. PILR-alpha is predominantly detected in hemopoietic tissues and is expressed in monocytes, macrophages, and granulocytes, but not lymphocytes. It is also strongly expressed by dendritic cells. PILR-alpha interacts with herpes simplex 1 glycoprotein B and functions as an entry coreceptor for this virus. 

  • Long Name:
    Paired-Ig-likeType 2 Receptor alpha
  • Entrez Gene IDs:
    29992 (Human); 231805 (Mouse); 288568 (Rat)
  • Alternate Names:
    Cell surface receptor FDF03; FDF03; inhibitory receptor PILRalpha; Inhibitory receptor PILR-alpha; paired immunoglobin-like receptor alpha; paired immunoglobin-like type 2 receptor alpha; paired immunoglobulin-like receptor alpha; paired immunoglobulin-like type 2 receptor alpha; PILRA; PILRalpha; PILR-alpha
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Rabbit IgG VisUCyte HRP Polymer Antibody

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