Recombinant Human LILRB1/CD85j/ILT2 Fc Chimera Protein, CF

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Recombinant Human LILRB1/CD85j/ILT2 Fc Chimera (Catalog #2017-T2) supports the adhesion of HSB2 humanperipheral blood acute lymphoblastic leukemia cells. Immobilized RecombinantHuman LILRB1/CD85j/ILT2 Fc Chimera at 5 ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

Order Details

Recombinant Human LILRB1/CD85j/ILT2 Fc Chimera Protein, CF Summary

Details of Functionality
Measured by its ability to support the adhesion of HSB2 human peripheral blood acute lymphoblastic leukemia cells. Immobilized Recombinant Human LILRB1/CD85j/ILT2 Fc Chimera at 5 µg/mL, 100 µL/well can support 60-80% HSB2 cell adhesion, when 1 x 105 cells were added in each well of a 96-well plate.
Source
Mouse myeloma cell line, NS0-derived human LILRB1/CD85j/ILT2 protein
Human LILRB1/CD85j/ILT2
(Gly24-His458)
Accession # Q8NHL6
IEGRMD Human IgG1
(Pro100-Lys330)
N-terminus C-terminus
Accession #
N-terminal Sequence
Gly24
Structure / Form
Disulfide-linked homodimer
Protein/Peptide Type
Recombinant Proteins
Gene
LILRB1
Purity
>90%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
73.8 kDa (monomer).
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
106 kDa, reducing conditions
Publications
Read Publications using
2017-T2 in the following applications:

Packaging, Storage & Formulations

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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS.
Purity
>90%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human LILRB1/CD85j/ILT2 Fc Chimera Protein, CF

  • CD85 antigen-like family member J
  • CD85j antigen
  • CD85j
  • Ig-like transcript 2
  • ILT2
  • ILT-2
  • ILT2FLJ37515
  • Immunoglobulin-like transcript 2
  • leukocyte Ig-like receptor-1
  • Leukocyte immunoglobulin-like receptor 1
  • leukocyte immunoglobulin-like receptor subfamily B member 1 soluble isoform
  • leukocyte immunoglobulin-like receptor subfamily B member 1
  • leukocyte immunoglobulin-like receptor, subfamily B (with TM and ITIM domains)
  • LILRB1
  • LIR1
  • LIR1LIR-1MIR-7CD85MIR7CD85 antigen
  • member 1
  • MIR7
  • Monocyte/macrophage immunoglobulin-like receptor 7

Background

LILRB1, also known as CD85j and ILT2, is a 110 kDa transmembrane glycoprotein in the LILR immunoregulatory protein family (1). Mature human LILRB1 consists of a 438 amino acid (aa) extracellular domain (ECD) with 4 tandem Ig-like domains, a 21 aa transmembrane segment, and a 168 aa cytoplasmic domain with 4 inhibitory ITIM motifs (2). Alternative splicing generates an additional isoform that lacks the transmembrane and cytoplasmic regions (3). LILRB1 is expressed on the surface of B cells and monocytes, as well as subsets of NK cells, memory/effector CD8+ T cells, gamma δ T cells, and monocyte-derived dendritic cells (3-7). LILRB1 binds to MHC-I as well as non-classical MHC-I molecules (e.g. HLA-F, HLA-G, and HC-B27) and the MHC-I mimetic UL18 encoded by cytomegalovirus (3, 5, 8-10). R&D Systems
in-house testing indicates that LILRB1 also binds to Angiopoietin-like 7. Ligation of LILRB1 inhibits the antigen induced proliferation and activation of CD8+ T cells, CD4+ T cells, NK cells, and gamma δ T cells (3, 4, 11-13). On dendritic cells, ligation inhibits the production of IL-10, IL-12p70, and TGF-beta and protects from Fas-mediated apoptosis (7).
  1. Thomas, R. et al. (2010) Clin. Rev. Allergy Immunol. 38:159.
  2. Samaridis, J. and M. Colonna (1997) Eur. J. Immunol. 27:660.
  3. Colonna, M. et al. (1997) J. Exp. Med. 186:1809.
  4. Harly, C. et al. (2011) Blood 117:2864.
  5. Cosman, D. et al. (1997) Immunity 7:273.
  6. Young, N.T. et al. (2001) J. Immunol. 166:3933.
  7. Young, N.T. et al. (2008) Blood 111:3090.
  8. Lepin, E.J.M. et al. (2000) Eur. J. Immunol. 30:3552.
  9. Shiroishi, M. et al. (2003) Proc. Natl. Acad. Sci. USA 100:8856.
  10. Allen, R.L. et al. (2001) J. Immunol. 167:5543.
  11. Ince, M.N. et al. (2004) Immunology 112:531.
  12. Saverino, D. et al. (2000) J. Immunol. 165:3742.
  13. Saverino, D. et al. (2002) J. Immunol. 168:207.

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Bioinformatics

Gene Symbol LILRB1
Uniprot