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Your Position: Home > Protein > LILRB1 > CDJ-H5252

Human LILRB1 / CD85j / ILT2 Protein, Fc Tag (MALS verified)

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  • Synonym
    CD85J,LILRB1,CD85,ILT2,LIR1,MIR7
  • Source
    Human LILRB1, Fc Tag(CDJ-H5252) is expressed from human 293 cells (HEK293). It contains AA Gly 24 - His 458 (Accession # D9IDM8-1).
    Predicted N-terminus: Gly 24
  • Molecular Characterization
    LILRB1 Structure

    This protein carries a human IgG1 Fc tag at the C-terminus.

    The protein has a calculated MW of 73.8 kDa. The protein migrates as 90-105 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method / rFC method.
  • Purity

    >92% as determined by SDS-PAGE.

    >95% as determined by SEC-MALS.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
LILRB1 SDS-PAGE

Human LILRB1, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 92% (With Star Ribbon Pre-stained Protein Marker).

SEC-MALS
LILRB1 MALS images

The purity of Human LILRB1, Fc Tag (Cat. No. CDJ-H5252) is more than 95% and the molecular weight of this protein is around 150-185 kDa verified by SEC-MALS.

Bioactivity-ELISA
 LILRB1 ELISA

Immobilized Biotinylated Human HLA-G & B2M Heterodimer Protein, His,Avitag (Cat. No. HLM-H82E4) at 1 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate can bind Human LILRB1, Fc Tag (Cat. No. CDJ-H5252) with a linear range of 2-39 ng/mL (Routinely tested).

  • Background
    CD85 antigen-like family member J (CD85J) is also known as Leukocyte immunoglobulin-like receptor subfamily B member 1 (LILRB1 or LIR-1), Immunoglobulin-like transcript 2 (ILT-2), Monocyte/macrophage immunoglobulin-like receptor 7 (MIR7), which belongs to leukocyte immunoglobulin-like receptor (LIR) family. CD85J / LILRB1 Contains 4 Ig-like C2-type (immunoglobulin-like) domains. CD85J / LIR-1 is expressed predominantly on B-cells and monocytes. CD85J is receptor for class I MHC antigens and recognizes a broad spectrum of HLA-A, HLA-B, HLA-C and HLA-G alleles and is also receptor for H301/UL18, a human cytomegalovirus class I MHC homolog. Ligand binding results in inhibitory signals and down-regulation of the immune response. CD85J / LILRB1 interaction with HLA-B or HLA-E leads to inhibition of the signal triggered by FCER1A and inhibits serotonin release. CD85J / LILRB1 inhibits FCGR1A-mediated phosphorylation of cellular proteins and mobilization of intracellular calcium ions.
  • Clinical and Translational Updates

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Drug Development Status

  • Number of Launched Drugs:0 Details
  • Number of Drugs in Clinical Trials:4 Details
  • Latest Research Phase:Phase 2 Clinical

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