Biotinylated Human SLAMF6 Protein (C-6His-Avi)

Name: Biotinylated Human SLAMF6 Protein (C-6His-Avi)
Brand: Beta LifeScience
SKU: BL-2796NP
Availability: InStock

BL-2796NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Collections: Avi-tagged proteins, Biotinylated proteins, Featured biotinylated protein molecules, Other recombinant proteins, Others immune checkpoint proteins, Recombinant proteins

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Product Overview

Description	Biotinylated Recombinant Human SLAM Family Member 6 is produced by our Mammalian expression system and the target gene encoding Gln22-Lys225 is expressed with a 6His, Avi tag at the C-terminus.
Accession	Q96DU3
Synonym	SLAM Family Member 6; Activating NK Receptor; NK-T-B-Antigen; NTB-A; CD352; SLAMF6; KALI
Gene Background	SLAM Family Member 6 (SLAMF6) is a 60 kD single-pass type I membrane protein that belongs to the SLAM subgroup of the CD2 family. Human SLAMF6/ NTB-A contains a 205 amino acid extracellular domain (ECD) with one Ig-like V-set and one Ig-like C2-set domain, a 21 amino acid transmembrane segment and an 84 amino acid cytoplasmic domain, with two immunoreceptor tyrosine-based switch motifs. SLAMF6 is a homodimer. SLAMF6 can interact with PTN6 and, upon phosphorylation, with PTN11 and SH2D1A/SAP. Phosphorylation-dependent NTB-A association with SAP is required for full production of IFN-γ by NK cells and independent of EAT-2 binding. It Triggers cytolytic activity only in natural killer cells (NK) expressing high surface densities of natural cytotoxicity receptors. On B cells, NTB-A modulates immunoglobulin class switching and the balance between tolerance and autoimmunity.
Molecular Mass	25.8 KDa
Apmol Mass	35-50 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	Self-ligand receptor of the signaling lymphocytic activation molecule (SLAM) family. SLAM receptors triggered by homo- or heterotypic cell-cell interactions are modulating the activation and differentiation of a wide variety of immune cells and thus are involved in the regulation and interconnection of both innate and adaptive immune response. Activities are controlled by presence or absence of small cytoplasmic adapter proteins, SH2D1A/SAP and/or SH2D1B/EAT-2. Triggers cytolytic activity only in natural killer cells (NK) expressing high surface densities of natural cytotoxicity receptors. Positive signaling in NK cells implicates phosphorylation of VAV1. NK cell activation seems to depend on SH2D1B and not on SH2D1A. In conjunction with SLAMF1 controls the transition between positive selection and the subsequent expansion and differentiation of the thymocytic natural killer T (NKT) cell lineage. Promotes T-cell differentiation into a helper T-cell Th17 phenotype leading to increased IL-17 secretion; the costimulatory activity requires SH2D1A. Promotes recruitment of RORC to the IL-17 promoter. In conjunction with SLAMF1 and CD84/SLAMF5 may be a negative regulator of the humoral immune response. In the absence of SH2D1A/SAP can transmit negative signals to CD4(+) T-cells and NKT cells. Negatively regulates germinal center formation by inhibiting T-cell:B-cell adhesion; the function probably implicates increased association with PTPN6/SHP-1 via ITSMs in absence of SH2D1A/SAP. However, reported to be involved in maintaining B-cell tolerance in germinal centers and in preventing autoimmunity.
Subcellular Location	Cell membrane; Single-pass type I membrane protein.
Database References	HGNC: 21392 OMIM: 606446 KEGG: hsa:114836 STRING: 9606.ENSP00000357036 UniGene: Hs.492348
Tissue Specificity	Expressed by all (resting and activated) natural killer cells (NK), T- and B-lymphocytes. Increased surface expression on T-cells of systemic lupus erythematosus (SLE) patients.

Gene Functions References

these results showed that the NTB-A/SAP pathway regulates T-cell activation and restimulation-induced cell death during human tuberculosis PMID: 28546549
in addition to its established role in Invariant NKT(iNKT) cell ontogeny, Ly108 regulates iNKT cell function in mice and humans PMID: 28373584
In addition to their role in NK cell activation by hematopoietic cells, the SLAM-SAP-SHP1 pathways influence responsiveness toward nonhematopoietic targets by a process akin to NK cell 'education'. PMID: 26878112
our data reveal how SAP nucleates a previously unknown signaling complex involving NTB-A and LCK to potentiate restimulation-induced cell death of activated human T cells. PMID: 24688028
Together, these results suggest that the reduction of NTB-A from the cell surface is associated with the Vpu-mediated effect on the glycosylation pattern of newly synthesized NTB-A molecules. PMID: 23528733
Data indicate that the dominance of the SLAMF3/SLAMF6 pathway in inducing IL-17A production can be attributed to an increased nuclear abundance and recruitment of RORgammat to the IL17A promoter. PMID: 22989874
SLAMF3 and SLAMF6 T cell surface expression and IL-17 levels significantly correlate with disease activity in systemic lupus erythematosus patients PMID: 22184727
Although the expression of SLAMF6 on the surface of T cells from patients with systemic lupus erythematosus (SLE) T cells is comparable to that on the normal T cells, engagement of SLAMF6 results in severely reduced Th1 and IL-2 cytokine production PMID: 21231893
Vpu downmodulation of NTB-A protects the infected cell from lysis by NK cells. PMID: 21075351
regulation of interferon-gamma secretion, and not interleukin-4 in vitro, as well as inhibition of Th1 cell-induced isotype switching and attenuation of experimental allergic encephalomyelitis identifies NTB-A as a regulator of T cell response PMID: 14988414
NTB-A is an interlymphocyte signaling molecule, which serves to orchestrate the activities of immune cells. PMID: 15153464
NTB-A-mediated IFN-gamma production was greatly reduced in the absence of SLAM-associated protein (SAP), demonstrating that cytokine production and cytotoxicity are differentially dependent on SAP and possibly EAT-2 PMID: 16920955
The 3.0 A crystal structure of the complete NTB-A ectodomain revealed a rod-like monomer that self-associates to form a highly kinked dimer spanning an end-to-end distance of approximately 100 A. PMID: 17045824

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.