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Human LILRB3/CD85a/ILT5 Protein

Product Info

Recombinant Human LILRB3/CD85a/ILT5 Protein is expressed from Expi293 with His tag and Avi tag at the C-terminal. It contains Gly24-Glu443.[Accession | O75022]

Molecular Weight

The protein has a predicted MW of 50 kDa. Due to glycosylation, the protein migrates to 60-72 kDa based on Tris-Bis PAGE result.


Less than 1EU per μg by the LAL method.


> 95% as determined by Tris-Bis PAGE
> 95% as determined by SEC-HPLC


Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 5 % trehalose is added as protectant before lyophilization.


Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.


The product should be stored at -70℃ or -20℃.

Assay Data
Tris-Bis PAGE

Human LILRB3 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.


The purity of Human LILRB3 is greater than 95% as determined by SEC-HPLC.


Leukocyte immunoglobulin-like receptor subfamily B (LILRB3), also known as ILT5, LIR3, and CD85a, is an immunoglobulin superfamily member that is involved in immune regulation. Subfamily B members have cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs) that inhibit signaling events via phosphatase SHP-1.LILRB3 may act as receptor for class I MHC antigens. Becomes activated upon coligation of LILRB3 and immune receptors, such as FCGR2B and the B-cell receptor.


CD85 antigen-like family member A; CD85a antigen; CD85a; HL9Immunoglobulin-like transcript 5; ILT5; ILT-5; ILT5CD85a; Leukocyte immunoglobulin-like receptor 3; leukocyte immunoglobulin-like receptor subfamily B member 3; leukocyte immunoglobulin-like receptor, subfamily B (with TM and ITIM domains); LILRB3; LIR3; LIR3CD85A; LIR-3MGC138403; member 3; Monocyte inhibitory receptor HL9; PIRB


(1)Huang J , Burke P S , Cung T D H , et al. Leukocyte Immunoglobulin-Like Receptors Maintain Unique Antigen-Presenting Properties of Circulating Myeloid Dendritic Cells in HIV-1-Infected Elite Controllers[J]. Journal of Virology, 2010, 84(18):9463-9471.

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