Human LRIG3 Antibody

Catalog # Availability Size / Price Qty
AF3495
AF3495-SP
LRIG3  in Human Cervical Cancer Tissue.
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Product Details
Citations (1)
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Human LRIG3 Antibody Summary

Species Reactivity
Human
Specificity
Detects human LRIG3 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant mouse LRIG1 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant human LRIG3 isoform 1 (R&D Systems, Catalog # 3495-LR)
Asp28-Thr807
Accession # Q6UXM1
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
0.1 µg/mL
Recombinant Human LRIG3 (Catalog # 3495-LR)
Immunohistochemistry
3-15 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 Example

Immunohistochemistry LRIG3  in Human Cervical Cancer Tissue. View Larger

LRIG3 in Human Cervical Cancer Tissue. LRIG3 was detected in immersion fixed paraffin-embedded sections of human cervical cancer tissue using Goat Anti-Human LRIG3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3495) at 3 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit  (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm of cancer cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
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: LRIG3

LRIG3 (leucine-rich repeats and Ig-like domains-3) is a 140 kDa type I transmembrane glycoprotein member of the mammalian LRIG glycoprotein family. This family contains three members who share 45 - 50% amino acid (aa) identity (1). All members contain at least fifteen LRRs, accompanied by two flanking cysteine-rich regions, and three C2-type Ig-like domains in their extracellular domains (ECD) (1). LRIG3 mRNA is widely expressed, with highest levels in stomach, skin, thyroid and small intestine (1). Human LRIG3 is synthesized as a 1120 amino acid (aa) precursor. It contains a 24 aa signal sequence, a 786 aa ECD, a 21 aa transmembrane sequence, and a 289 aa intracellular region. One splice variant exists that has a 19 aa substitution for the first 79 aa of the standard (or long) form. This substitution appears to encode an alternate signal sequence, resulting in a mature protein that lacks the first and part of the second LRR. LRIG1, a related family member, is known to bind the EGF family receptors ErbB1-4, via either its LRR or Ig-like domains. It also binds the ubiquitin ligase, c-Cbl, and promotes ubiquitination, internalization and destruction of these receptors (2, 3). It is not known whether LRIG3 performs similar functions. Within the cell, LRIG3 is expressed in the perinuclear region as well as on the cell surface. Perinuclear location of LRIG3 in grade III and IV astrocytic tumors has been associated with better patient survival (4). Human LRIG3 ECD shows 91%, 92%, 95% and 98% aa identity with mouse, rat, bovine and canine LRIG3 ECD, respectively.

References
  1. Guo, D. et al. (2004) Genomics 84:157.
  2. Gur, G. et al. (2004) EMBO J. 23:3270.
  3. Laederich, M.B. (2004) J. Biol. Chem. 279:47050.
  4. Guo, D. et al. (2006) Acta Neuropathol. (Berl.) 111:238.
Long Name
Leucine-rich Repeats and Immunoglobulin-like Domains 3
Entrez Gene IDs
121227 (Human); 320398 (Mouse)
Alternate Names
FLJ90440; KIAA3016; leucine-rich repeats and immunoglobulin-like domains 3; leucine-rich repeats and immunoglobulin-like domains protein 3; LIG-3; LIG3FLJ26573; LIRG3; LRIG3

Product Datasheets

Citation for Human LRIG3 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Leucine-rich repeat and immunoglobulin domain-containing protein-1 (Lrig1) negative regulatory action toward ErbB receptor tyrosine kinases is opposed by leucine-rich repeat and immunoglobulin domain-containing protein 3 (Lrig3).
    Authors: Rafidi, Hanine, Mercado, Francisc, Astudillo, Michael, Fry, William, Saldana, Matthew, Carraway, Kermit L, Sweeney, Colleen
    J Biol Chem, 2013;288(30):21593-605.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot

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Cell and Tissue Staining Kits

Immunohistochemistry Reagents

Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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