LAIR1 Protein, Human, Recombinant (His), Biotinylated is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 17.2 kDa and the accession number is AAF71275.2.
| 説明 |
LAIR1 Protein, Human, Recombinant (His), Biotinylated is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 17.2 kDa and the accession number is AAF71275.2. |
| Species |
Human
|
| Expression Host |
HEK293 Cells
|
| Tag |
C-His
|
| Accession Number |
AAF71275.2
|
| 別名 |
CD305, LAIR-1, leukocyte-associated immunoglobulin-like receptor 1
|
| Construction |
The Human LAIR1 (AAF71275.2) (Met1-Tyr165) was expressed with a polyhistidine tag at the C-terminus. The purified protein was biotinylated in vitro.
|
| Protein Purity |
> 95 % as determined by SDS-PAGE.
|
| 分子量 |
17.2 kDa (predicted)
|
| Endotoxin |
< 1.0 EU/μg of the protein as determined by the LAL method.
|
| Formulation |
Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
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| Reconstitution |
A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
|
| Stability & Storage |
It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
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| Shipping |
In general, Lyophilized powders are shipping with blue ice.
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| Research Background |
Leukocyte-associated Ig-like receptor-1 (LAIR1) is a surface molecule expressed on human mononuclear leukocytes that functions as an inhibitory receptor on human NK cells. In addition to NK cells, LAIR1 is expressed on T cells, B cells, macrophages, and dendritic cells. It is predicted to mediate inhibitory functions based on the presence of immunoreceptor tyrosine-based inhibitory motifs (ITIMs) in its cytoplasmic domain. Cross-linking of LAIR1 on human T cell clones results in inhibition of cytotoxicity only in T cell clones that lack CD28 and can spontaneously lyse certain targets in vitro. Moreover, the cytolytic activity of freshly isolated T cells, which is thought to be mainly due to "effector" T cells, can be inhibited by anti-LAIR1 mAb. Thus, LAIR1 functions as an inhibitory receptor not only on NK cells but also on human T cells. This indicates that LAIR1 provides a mechanism of regulation of effector T cells and may play a role in the inhibition of unwanted bystander responses mediated by Ag-specific T cells.
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参考文献
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