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  2. CD Antigens Receptor Proteins Biotinylated Proteins
  3. NK Cell CD Proteins Macrophage CD Proteins Monocyte CD Proteins Dendritic Cell CD Proteins Leukocyte Immunoglobin-like Receptors
  4. CD85j/LIR-1 LIR-1
  5. LILRB1/CD85j/ILT2 Protein, Human (HEK293, His-Avi)

LILRB1/CD85j/ILT2 Protein, Human (HEK293, His-Avi)

Cat. No.: HY-P77985
Handling Instructions

The LILRB1/CD85j/ILT2 protein is a receptor for class I MHC antigens and recognizes multiple HLA alleles and H301/UL18 (human cytomegalovirus MHC homolog). Ligand binding induces inhibitory signals that downregulate immune responses. LILRB1/CD85j/ILT2 Protein, Human (HEK293, His-Avi) is the recombinant human-derived LILRB1/CD85j/ILT2 protein, expressed by HEK293 , with C-Avi, C-His labeled tag. The total length of LILRB1/CD85j/ILT2 Protein, Human (HEK293, His-Avi) is 435 a.a., with molecular weight of 72-78 kDa.

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Description

The LILRB1/CD85j/ILT2 protein is a receptor for class I MHC antigens and recognizes multiple HLA alleles and H301/UL18 (human cytomegalovirus MHC homolog). Ligand binding induces inhibitory signals that downregulate immune responses. LILRB1/CD85j/ILT2 Protein, Human (HEK293, His-Avi) is the recombinant human-derived LILRB1/CD85j/ILT2 protein, expressed by HEK293 , with C-Avi, C-His labeled tag. The total length of LILRB1/CD85j/ILT2 Protein, Human (HEK293, His-Avi) is 435 a.a., with molecular weight of 72-78 kDa.

Background

The LILRB1/CD85j/ILT2 Protein serves as a receptor for class I MHC antigens, demonstrating recognition across a broad spectrum of HLA-A, HLA-B, HLA-C, HLA-G, and HLA-F alleles. Additionally, it acts as a receptor for H301/UL18, a human cytomegalovirus class I MHC homolog. Ligand binding induces inhibitory signals, leading to the down-regulation of the immune response. The engagement of LILRB1 by class I MHC molecules on natural killer cells or T-cells protects target cells from lysis, and interaction with HLA-B or HLA-E inhibits FCER1A signaling and serotonin release. Moreover, LILRB1 inhibits FCGR1A-mediated cellular responses, including phosphorylation of proteins and mobilization of intracellular calcium ions. It recognizes HLA-G in complex with B2M/beta-2 microglobulin and a nonamer self-peptide, triggering the secretion of growth-promoting factors by decidual NK cells. Additionally, it reprograms B cells toward an immune suppressive phenotype. LILRB1 binds PTPN6 when phosphorylated and interacts with FCER1A, FCGR1A, and the UL18 protein from human cytomegalovirus. It also interacts with peptide-bound HLA-G-B2M and HLA-F-B2M complexes, highlighting its diverse roles in immune modulation and viral recognition.

Species

Human

Source

HEK293

Tag

C-Avi;C-His

Accession

Q8NHL6 (G24-H458)

Gene ID
Molecular Construction
N-term
LILRB1 (G24-H458)
Accession # Q8NHL6
His-Avi
C-term
Synonyms
ILT2; ILT-2; ILT2FLJ37515; LILRB1; LIR1; MIR7; CD85J; XXbac-BCX85G21.4
Molecular Weight

72-78 kDa

Purity

Greater than 95% as determined by Tris-Bis PAGE.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Documentation
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Product Name:
LILRB1/CD85j/ILT2 Protein, Human (HEK293, His-Avi)
Cat. No.:
HY-P77985
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