PROVETOP

Biotinylated Human LILRB4/CD85k/ILT3 SR&Domain 2 Protein

Catalog No: LILRB4-HB003

Species
Human
Expression System
HEK293
Tag
His, Avi

Product overview

Recombinant Biotinylated Human LILRB4/CD85k/ILT3 Domain 2 Protein is expressed in HEK293 cells with a His tag and Avi tag at the C-terminus. It contains amino acid residues Gly119-Glu259 (UniProt accession: Q8NHJ6-1).

Product Details

Molecular Aliases
HM18; ILT3; ILT-3; LILRB4; LIR5; CD85K
Protein Length
Gly119-Glu259
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 18.16 kDa. Due to glycosylation, the protein migrates to 32-45 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 90% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Supplied as 0.22μm filtered solution in PBS (pH 7.4).
State
Liquid
Storage Conditions
Valid for 12 months from date of receipt when stored at -80°C. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

Data Display

Bis-Tris PAGE
LILRB4-HB003 Bis-Tris-PAGE-white result

Biotinylated Human LILRB4 Domain 2 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
LILRB4-HB003 SEC-HPLC result

The purity of Biotinylated Human LILRB4 Domain 2 is greater than 90% as determined by SEC-HPLC.

Background

LILRB4,also known as CD85k and LIR-5, ILT3, is an approximately 60 kDa transmembrane glycoprotein that negatively regulates immune cell activation. Mature human ILT3 consists of a 238 amino acid (aa) extracellular domain with two Ig-like domains, a 21 aa transmembrane segment, and a 168 aa cytoplasmic domain with 3 immunoreceptor tyrosine-based inhibitory motifs (ITIM).LILRB4 is receptor for class I MHC antigens. Recognizes a broad spectrum of HLA-A, HLA-B, HLA-C and HLA-G alleles.

References

  1. Samuel J, Heyu C, Mi D, et al. A Novel Anti-LILRB4 CAR-T Cell for the Treatment of Monocytic AML[J]. Molecular Therapy, 2018:S1525001618303721-.

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