Human LRIG3 Antibody
R&D Systems, part of Bio-Techne | Catalog # AF3495
Key Product Details
Species Reactivity
Validated:
Cited:
Applications
Validated:
Cited:
Label
Antibody Source
Product Specifications
Immunogen
Asp28-Thr807
Accession # Q6UXM1
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human LRIG3 Antibody
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.Detection of LRIG3 by Western Blot
LRIG3 inhibited glioma angiogenesis by regulating VEGFA expression. (A) qRT-PCR analysis targeting angiogenic factors in glioma cells transduced with LRIG3 and control siRNAs. (B) Western blot analysis of VEGFA, LRIG3, and GAPDH. (C) Integrated density of the bands was normalized to GAPDH in LRIG3 knockdown or overexpression glioma cells. (D) Levels of VEGFA protein in the CM from glioma cells with LRIG3 knockdown or overexpression were detected by ELISA. Data are means ± SD of 3 independent replicates. *p < 0.05; **p < 0.01; ***p < 0.001. CM, conditioned medium. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33718179), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of LRIG3 by Western Blot
Clinical relevance of LRIG3, p-AKT, and VEGFA expression in gliomas. (A) IHC staining targeting LRIG3, p-AKT, and VEGFA in two representative GBM specimens. Brown staining, positive immunoreactivity. (B) Relative levels of LRIG3, p-AKT, and VEGFA proteins in GBM specimens (with low and high LRIG3 expression levels in 28 GBM patients). (C) Expression analysis (left) and correlation (right) between LRIG3 and VEGFA expression in 10 freshly collected human glioma samples. Data are means ± SD of 3 independent replicates. ***p < 0.001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33718179), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human LRIG3 Antibody
Immunohistochemistry
Sample: Immersion fixed paraffin-embedded sections of human cervical cancer tissue
Western Blot
Sample: Recombinant Human LRIG3 (Catalog # 3495-LR)
Formulation, Preparation, and Storage
Purification
Reconstitution
Formulation
Shipping
Stability & Storage
- 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
- Guo, D. et al. (2004) Genomics 84:157.
- Gur, G. et al. (2004) EMBO J. 23:3270.
- Laederich, M.B. (2004) J. Biol. Chem. 279:47050.
- Guo, D. et al. (2006) Acta Neuropathol. (Berl.) 111:238.
Long Name
Alternate Names
Gene Symbol
UniProt
Additional LRIG3 Products
Product Documents for Human LRIG3 Antibody
Product Specific Notices for Human LRIG3 Antibody
For research use only