Human Allergin-1 Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human Allergin-1 in direct ELISAs.
  • Source
    Monoclonal Mouse IgG1 Clone # 767727
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human Allergin-1
    Met1-Lys227
    Accession # Q7Z6M3
  • 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
  • Flow Cytometry
    2.5 µg/106 cells
    See below
  • CyTOF-ready
    Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
  • Immunocytochemistry
    8-25 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 Allergin‑1 in Human Blood Monocytes by Flow Cytometry. Human peripheral blood monocytes were stained with Mouse Anti-Human CD14 Fluorescein-conjugated Monoclonal Antibody (Catalog # FAB3832F) and either (A) Mouse Anti-Human Allergin‑1 Monoclonal Antibody (Catalog # MAB7638) or (B) Mouse IgG1 Isotype Control (Catalog # MAB002) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B).
Immunocytochemistry
Allergin‑1 in U‑87 MG Human Cell Line. Allergin‑1 was detected in immersion fixed U‑87 MG human glioblastoma/astrocytoma cell line using Mouse Anti-Human Allergin‑1 Monoclonal Antibody (Catalog # MAB7638) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the Northern­Lights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counter­stained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
  • Reconstitution
    Sterile PBS to a final concentration of 0.5 mg/mL.
  • 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: Allergin-1

MCA32 (Mast Cell Antigen; also Allergin‑1 and c17orf60) is a 70 kDa member of the Ig Superfamily. It is expressed on mast cells, basophils, neutrophils and macrophages, and is reported to negatively regulate allergic mediator release from mast cells. In particular, MCA32 interacts with Fc epsilon RI. Upon IgE mediated Fc epsilon RI aggregation and activation, Allergin‑1 recruits Tyr phosphatases to a Fc epsilon RI tetrameric complex, dampening IgE receptor downstream signaling. Mature human Allergin‑1 is a monomeric type I transmembrane glycoprotein that is 324 amino acids (aa) in length. It contains two C2-type Ig domains (aa 35-118 and 123-217) in the extracellular region (aa 20-227), plus a 95 aa cytoplasmic domain that possesses two ITIM motifs. Two 40 kDa splice variants exist that show deletions of the Ig-like domains. One isoform termed Allergin‑1S1 is missing aa 128-217, while a second isoform called Allergin‑1S2 is missing aa 33-122. This second isoform represents the antigen used for immunization in this product (GenBank BAJ08253). Over aa 29-131, the Allergin‑1S2 isoform shares 100% sequence identity with human Allergin‑1L full length isoform and only 24% aa sequence identity with mouse Allergin‑1.

  • Long Name:
    Allergy Inhibitory Receptor 1
  • Entrez Gene IDs:
    284021 (Human)
  • Alternate Names:
    Allergin1; Allergin-1; Allergy Inhibitory Receptor 1; C17orf60; Chromosome 17 Open Reading Frame 60; Mast Cell Antigen 32; Mast Cell Immunoglobulin-Like Receptor 1; MCA32; MCA-32; MCA32-1S2; MILR1; Probable Mast Cell Antigen 32 Homolog
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