Human/Mouse Insulin R/CD220 Alexa Fluor® 700-conjugated Antibody

FAB1544N has been discontinued. View all Insulin R/CD220 products.
    
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  • Species Reactivity
    Human, Mouse
  • Specificity
    Detects human Insulin R/CD220 in direct ELISAs and Western blots. In direct ELISAs, approximately 20% cross-reactivity with recombinant mouse Insulin R is observed and less than 5% cross-reactivity with recombinant human INSRR is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human Insulin R/CD220
    His28-Lys944
    Accession # NP_001073285
  • Formulation
    Supplied in a saline solution containing BSA and Sodium Azide.
  • Label
    Alexa Fluor 700
Product Datasheets

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Applications
  •  
    Recommended
    Concentration
    Sample
  • Flow Cytometry
    5 µL/106 cells
    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 Insulin R/CD220 in Human Blood Monocytes by Flow Cytometry. Human peripheral blood monocytes were stained with Goat Anti-Human/Mouse Insulin R/CD220 Alexa Fluor® 700‑conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # FAB1544N, filled histogram) or isotype control antibody (Catalog # IC108N, open histogram). View our protocol for Staining Membrane-associated Proteins.
Detection of Insulin R/CD220 in Neuro‑2A Mouse Cell Line by Flow Cytometry. Neuro‑2A mouse neuroblastoma cell line was stained with Goat Anti-Human/Mouse Insulin R/CD220 Alexa Fluor® 700‑conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # FAB1544N, filled histogram) or isotype control antibody (Catalog # IC108N, open histogram). View our protocol for Staining Membrane-associated Proteins.
Preparation and Storage
  • Shipping
    The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
  • Stability & Storage
    Protect from light. Do not freeze.
    • 12 months from date of receipt, 2 to 8 °C as supplied.
Background: Insulin R/CD220

The Insulin Receptor (INS R) and insulin-like growth factor-1 receptor (IGF-1 R) constitute a subfamily of receptor tyrosine kinases (1‑4). The two receptors share structural similarity as well as overlapping intracellular signaling events, and are believed to have evolved through gene duplication from a common ancestral gene. INS R cDNA encodes a type I transmembrane single chain preproprotein with a putative 27 amino acid residues (aa) signal peptide. The large INS R extracellular domain is organized into two successive homologous globular domains, which are separated by a Cysteine-rich domain, followed by three fibronectin type III domains. The intracellular region contains the kinase domain sandwiched between the juxtamembrane domain used for docking insulin-receptor substrates (IRS), and the carboxy-terminal tail that contains two phosphotyrosine-binding sites. After synthesis, the single chain INS R precursor is glycosylated, dimerized and transported to the Golgi apparatus where it is processed at a furin-cleavage site within the middle fibronectin type III domain to generate the mature disulfide-linked  alpha 2 beta 2 tetrameric receptor. The alpha subunit is localized extracellularly and mediates ligand binding while the transmembrane beta subunit contains the cytoplasmic kinase domain and mediates intracellular signaling. As a result of alternative splicing, two INS R isoforms (A and B) that differ by the absence or presence, respectively, of a 12 aa residue sequence in the carboxyl terminus of the alpha subunit exist. Whereas the A isoform is predominantly expressed in fetal tissues and cancer cells, the B isoform is primarily expressed in adult differentiated cells. Both the A and B isoforms bind insulin with high-affinity, but the A isoform has considerably higher affinity for IGF‑I and IGF‑II. Ligand binding induces a conformational change of the receptor, resulting in ATP binding, autophosphorylation, and subsequent downstream signaling. INS R signaling is important in metabolic regulation, but may also contribute to cell growth, differentiation and apoptosis. Mutations in the INS R gene have been linked to insulin-resistant diabetes mellitus, noninsulin-dependent diabetes mellitus and leprechaunism, an extremely rare disorder characterized by abnormal resistance to insulin that results in a variety of distinguishing characteristics, including growth delays and abnormalities affecting the endocrine system. INS R is highly conserved between species, rat INS R shares 94% and 97% aa sequence homology with the human and mouse receptor, respectively.

  • References:
    1. Nakae, J. et al. (2001) Endoc. Rev. 22:818.
    2. De Meyts, P. and J. Whittaker (2002) Nature Rev. Drug Disc. 1:769.
    3. Kim, J.J. and D. Accili (2002) Growth Hormone and IGF Res. 12:84.
    4. Sciacca, L. et al. (2003) Endocrinology 144:2650.
  • Long Name:
    Insulin Receptor
  • Entrez Gene IDs:
    3643 (Human); 16337 (Mouse)
  • Alternate Names:
    CD 220; CD220 antigen; CD220; EC 2.7.10; EC 2.7.10.1; HHF5; INSR; Insulin R; insulin receptor; InsulinR; IR
Related Research Areas

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