Recombinant Human LILRA2/CD85h/ILT1 Protein, CF

  
  • Purity
    >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
  • Endotoxin Level
    <0.10 EU per 1 μg of the protein by the LAL method.
  • Activity
    Measured by its binding ability in a functional ELISA. When Recombinant Human LILRA2/CD85h/ILT1 is coated at 2 µg/mL, Recombinant Human Angiopoietin-like Protein 7/ANGPTL7. (Catalog # 914-AN) binds with a typical ED50 of 150-900 ng/mL.
  • Source
    Human embryonic kidney cell, HEK293-derived Gly24-Asn449, with a C-terminal 6-His tag
  • Accession #
  • N-terminal Sequence
    Analysis
    Gly24
  • Predicted Molecular Mass
    48 kDa
  • SDS-PAGE
    70-81 kDa, reducing conditions
9040-T4
 
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 500 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Data Images
When Recombinant Human LILRA2/CD85h/ILT1 (Catalog # 9040-T4) is coated at 2 µg/mL, Recombinant Human Angiopoietin-like 7 Protein (Catalog # 914-AN) binds with a typical ED50 of150-900 ng/mL.
Background: LILRA2/CD85h/ILT1
LILRA2, also known as ILT1, CD85h, and LIR7, is an approximately 70 kDa variably glycosylated transmembrane protein that regulates immune cell activation (1). Mature human LILRA2 consists of a 426 amino acid (aa) extracellular domain (ECD) with 4 Ig-like domains, a 21 aa transmembrane segment, and a 13 aa cytoplasmic tail (2). Alternative splicing generates isoforms with short deletions between the fourth Ig-like domain and the transmembrane region, and an isoform that is truncated C-terminal to the fourth Ig-like domain (3, 4). LILRA2 is expressed on monocytes, neutrophils, basophils, and eosinophils (5-7). It contains a positively charged  arginine residue in its transmembrane segment, enabling association with the signaling protein Fc epsilon RI gamma (5). Cross-linking of LILRA2 on monocytes induces the production of multiple cytokines as well as the upregulation of Fc gamma receptors (6, 7). Cross-linking also restricts monocyte differentiation into immature dendritic cells, phagocytic activity, and antigen presentation to T cells (6, 7). R&D Systems in-house testing indicates that LILRA2 binds to Angiopoietin-like 7, consistent with the demonstrated functional interactions between other members of these protein families (8).
  • References:
    1. Thomas, R. et al. (2010) Clin. Rev. Allergy Immunol. 38:159.
    2. Borges, L. et al. (1997) J. Immunol. 159:5192.
    3. Jones, D.C. et al. (2009) Eur. J. Immunol. 39:3195.
    4. Mamegano, K. et al. (2008) Genes Immun. 9:214.
    5. Nakajima, H. et al. (1999) J. Immunol. 162:5.
    6. Lu, H.K. et al. (2012) PLoS One 7:e33478.
    7. Lee, D.J. et al. (2007) J. Immunol. 179:8128.
    8. Zheng, J. et al. (2012) Nature 485:656.
  • Long Name:
    Leukocyte Immunoglobulin-like Receptor, Subfamily A (with TM domain), Member 2
  • Entrez Gene IDs:
    11027 (Human)
  • Alternate Names:
    CD85 antigen-like family member H; CD85h antigen; CD85h; ILT1; ILT-1; ILT1CD85H; Leukocyte immunoglobulin-like receptor 7; leukocyte immunoglobulin-like receptor subfamily A member 2 soluble; leukocyte immunoglobulin-like receptor subfamily A member 2; leukocyte immunoglobulin-like receptor, subfamily A (with TM domain), member 2; LILRA2; LIR7; LIR7LIR-7Immunoglobulin-like transcript 1
Related Research Areas
Primary Antibodies
Description Application Cat# Citations Images  

His Tag Antibody

WB, Simple Western, Flow, AP, CyTOF-ready MAB050 26  
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His Tag HRP-conjugated Antibody

WB, Simple Western MAB050H 3  
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His Tag APC-conjugated Antibody

ICFlow IC050A  
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His Tag Biotinylated Antibody

WB BAM050 4  
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His Tag PE-conjugated Antibody

ICFlow IC050P 2  
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His Tag Antibody

WB, Flow, AP MAB050R  
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His Tag Alexa Fluor® 488-conjugated Antibody

ICFlow IC050G  
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His Tag PerCP-conjugated Antibody

ICFlow IC050C  
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His Tag Alexa Fluor® 700-conjugated Antibody

ICFlow IC050N  
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Protein Purification Kits
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Histidine-tagged Protein Purification Resin

IP999 1
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