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Description
LILRB2/CD85d/ILT4 Fc Chimera Protein, HumanProduct Specification Species Human Accession AAH36827. 1 Amino Acid Sequence Gly24 His458, with C terminal Human IgG Fc Expression System HEK293 Molecular Weight 90~95 kDa(Reducing) Purity 95%, by SDS PAGE under reducing conditions Endotoxin <0. 1EU g Conjugation Unconjugated Tag Human Fc Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH7. 4 Reconstitution Reconstitute at less than 1 mg mL according to the size in ultrapure water
Product Specification
| Species | Human |
| Accession | AAH36827.1 |
| Amino Acid Sequence | Gly24-His458, with C-terminal Human IgG Fc |
| Expression System | HEK293 |
| Molecular Weight | 90~95 kDa(Reducing) |
| Purity | ＞95%, by SDS-PAGE under reducing conditions |
| Endotoxin | <0.1EU/μg |
| Conjugation | Unconjugated |
| Tag | Human Fc Tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | PBS, pH7.4 |
| Reconstitution | Reconstitute at less than 1 mg/mL according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage |
· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
Background
Leukocyte immunoglobulin (Ig)-like receptor B2 (LILRB2) is a member of leukocyte Ig-like receptors (LILRs), also known as CD85D, ILT4, LIR2, and MIR10, contains four extracellular immunoglobulin domains, a transmembrane domain, and three cytoplasmic ITIMs. It is expressed on hematopoietic stem cells, monocytes, macrophages, DCs, neutrophils, basophils, platelets, and activated CD4+T cells, as well as in vitro cultured endothelial cells, mast cell progenitors, and osteoclasts. LILRB2 plays physiological roles in multiple tissues. LILRB2 is involved in immunotolerance in pregnancy and transplantation. HLA-G/LILRB2 interactions promote accumulation and the suppressive activity of MDSCs during human pregnancies. Crosslinking of LILRB2 with Fcγ R in vitro led to inhibition of Fcγ R-mediated signaling in monocytes and serotonin release in basophilic cells. Upregulation of LILRB2 induced the tolerance of DCs. Interaction of LILRB2 with HLA class I molecules is positively associated with viral replication in HIV, suggesting that this interaction leads to a blunted immune response. Upregulation of LILRB2 and LILRB4 in antigen-presenting cells in response to Salmonella infection suggests a role for these receptors in balancing the inflammatory response against bacterial infection. LILRB2 is localized in neutrophil lipid rafts and rapidly moves to the cell surface upon neutrophil stimulation. This upregulated LILRB2 then enhances the inhibitory signals of HLAG on the phagocytic function of neutrophils. Future studies are required to shed light on how neutrophil and immune responses are modulated through LILRB2 interactions with this diverse set of ligands.
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Exchange/Return Notes
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