Recombinant Human NKG2DL Protein (C-Fc)

Name: Recombinant Human NKG2DL Protein (C-Fc)
Brand: Beta LifeScience
SKU: BL-0114NP
Availability: InStock

BL-0114NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Collections: Car-nk targets proteins, Other recombinant proteins, Recombinant proteins

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Product Overview

Description	Recombinant Human UL16 Binding Protein-1/NKG2D Ligand 1 is produced by our Mammalian expression system and the target gene encoding Gly26-Pro215 is expressed with a human IgG1 Fc tag at the C-terminus.
Accession	Q9BZM6
Synonym	NKG2D ligand 1; NKG2DL1; ALCAN-beta; Retinoic acid early transcript 1I; UL16-binding protein 1; ULBP1
Gene Background	NKG2D ligand 1, also called ULBP1, is a member of UL16-binding protein (ULBP) family which has also been termed the retinoic acid early transcript 1 (RAET1) family. Unlike the classical MHC class I molecules and the MIC molecules possess α1, α2 and α3 domains, ULBP/RAET1 family members lack α3 domain. ULBP1 is recognized by the activating receptor NKG2D on the surface of cytotoxic natural killer (NK) and T cells, and then promotes the lysis of cells expressing ULBP1 which is important for the immune surveillance. ULBP1 and several other family members, ULBP2 and ULBP5, own the ability to bind the human cytomegalovirus (CMV) UL16 glycoprotein. The human CMV glycoprotein UL16 binds to intracellular ULBP1 and so inhibits its expression at the cell surface, which reduces the susceptibility of the virus-infected cell to cytotoxic destruction by NK cells. The expression of ULBP1 has been found on some tumor cells and is implicated in tumor surveillance.
Molecular Mass	49.4 KDa
Apmol Mass	58-70 KDa, reducing conditions
Formulation	Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
Endotoxin	Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity	Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Not tested
Reconstitution	Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Target Function	Binds and activates the KLRK1/NKG2D receptor, mediating natural killer cell cytotoxicity.
Subcellular Location	Cell membrane; Lipid-anchor, GPI-anchor. Endoplasmic reticulum.
Protein Families	MHC class I family
Database References	HGNC: 14893 OMIM: 605697 KEGG: hsa:80329 STRING: 9606.ENSP00000229708 UniGene: Hs.653255
Tissue Specificity	Expressed in T-cells, B-cells, erythroleukemia cell lines and in a wide range of tissues including heart, brain, lung, liver, testis, lymph node, thymus, tonsil and bone marrow. Also found in fetal heart, brain, lung and liver.

Gene Functions References

we show that Simian Virus 40 (SV40)...evades NK cell attack through the down regulation of...ULBP1 PMID: 26992229
ATF4 drives ULBP1 gene expression in cancer cell lines, while the RNA-binding protein RBM4 supports ULBP1 expression by suppressing a novel alternatively spliced isoform of ULBP1 mRNA. PMID: 26565589
expression determines intrinsic acute myeloid leukemia susceptibility to allogeneic V[gamma]9V[delta]2 T cells PMID: 24911793
recurrence-free survival of patients with ULBP1-negative hepatocellular carcinoma (HCC) was significantly shorter than that of patients with ULBP1-positive HCC PMID: 21756848
recombinant ULBP1 fused to CD45 caused a reduction in cytotoxicity and degranulation by NK cells, implying a role for receptor ligand distribution in the activation of NK cell responses PMID: 21464092
Data show that ULBP1, TFR2 and IFITM1 were associated with increased susceptibility to Vgamma9Vdelta2 T-cell cytotoxicity. PMID: 20220060
These results identify Mult1 as a target for the MARCH family of E3 ligases PMID: 20870941
As NKG2D ligand, ULBP1 are expressed on immature dendritic cells and plays an important role in the cytotoxic effect of NK cells against iDC. PMID: 18394338
Data show that the protease NS3/4A of HCV down-regulates ULBP1 expression by inhibiting the transcription of ULBP1. PMID: 19500498
ULBP1 binds to the NKG2D receptor and activates multiple signaling pathways in primary natural killer cells. PMID: 11777960
The NKG2D ligand ULBP1 is up-regulated and readily detectable intracellularly in the endoplasmic reticulum of human cytomegalovirus-infected fibroblasts, where it colocalizes with viral protein UL16. PMID: 12847260
ULBP1 is a human ligand of the NKG2D receptor PMID: 16901903
The selective induction of ULBP1 expression by proteasome inhibitor drugs, along with variable NKG2D ligand expression by human tumor cells, indicates that NKG2D ligand genes are independently regulated. PMID: 19414815

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.