Name :
Recombinant Human ILT4/LILRB2 Protein (ECD, His & AVI Tag), Biotinylated, HPLC-verified
Biological Activity :
Background :
ILT4, also known as LILRB2, is a member of the subfamily B class of LIR receptors which contain two or four extracellular immunoglobulin domains, a transmembrane domain, and two to four cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). ILT4 gene is a member of the leukocyte immunoglobulin-like receptor (LIR) family. Multiple transcript variants encoding different isoforms have been found for the ILT4 gene. ILT4 is expressed on immune cells where it binds to MHC class I molecules on antigen-presenting cells and transduces a negative signal that inhibits stimulation of an immune response. It is thought to control inflammatory responses and cytotoxicity to help focus the immune response and limit autoreactivity.
Biological Activity :
Testing in progress
Expression Host :
Human
Source :
HEK293 Cells
Tag :
Protein Accession No. :
AAH36827.1
NCBI Gene ID :
Synonyms :
Synonyms :
leukocyte immunoglobulin like receptor B2
Amino Acid Sequence :
Molecular Weight :
The recombinant human LILRB2 consists of 466 amino acids and predicts a molecular mass of 51.06 kDa. It migrates as an approximately 63.9 kDa band in SDS-PAGE under reducing conditions.
Purity :
≥ 95 % as determined by SDS-PAGE. ≥ 95 % as determined by SEC-HPLC.
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg protein as determined by the LAL method.
Protein Construction :
A DNA sequence encoding the human LILRB2 (AAH36827.1) (Met1-Val461) was expressed with a C-terminal polyhistidine tag followed by an AVI tag. The expressed protein was biotinylated in vivo by the Biotin-Protein ligase (BirA enzyme) which is co-expressed.
Buffer Solution :
Lyophilized from sterile 20mM Tris, 150mM NaCl, 0.02% Tween80, 10% Glycerol, pH 8.5.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
CD85D Protein, Human; ILT-4 Protein, Human; ILT4 Protein, Human; LIR-2 Protein, Human; LIR2 Protein, Human; MIR-10 Protein, Human; MIR10 Protein, Human ILT4/LILRB2 背景信息 ILT4, also known as LILRB2, is a member of the subfamily B class of LIR receptors which contain two or four extracellular immunoglobulin domains, a transmembrane domain, and two to four cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). ILT4 gene is a member of the leukocyte immunoglobulin-like receptor (LIR) family. Multiple transcript variants encoding different isoforms have been found for the ILT4 gene. ILT4 is expressed on immune cells where it binds to MHC class I molecules on antigen-presenting cells and transduces a negative signal that inhibits stimulation of an immune response. It is thought to control inflammatory responses and cytotoxicity to help focus the immune response and limit autoreactivity.
References & Citations :
Colonna M., et al.,(1997), A common inhibitory receptor for major histocompatibility complex class I molecules on human lymphoid and myelomonocytic cells. J. Exp. Med. 186:1809-1818.Borges L., et al., (1997), A family of human lymphoid and myeloid Ig-like receptors, some of which bind to MHC class I molecules.J. Immunol. 159:5192-5196.Grimwood J., et al.,(2004), The DNA sequence and biology of human chromosome 19.Nature 428:529-535.
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