Recombinant Human BTN3A1 Protein (C-6His)

Name: Recombinant Human BTN3A1 Protein (C-6His)
Brand: Beta LifeScience
SKU: BL-2623NP
Availability: InStock

BL-2623NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Collections: All products, High-quality recombinant proteins, Other recombinant proteins, Others immune checkpoint proteins

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Product Overview

Description	Recombinant Human Butyrophilin Subfamily 3 Member A1 is produced by our Mammalian expression system and the target gene encoding Gln30-Gly254 is expressed with a 6His tag at the C-terminus.
Accession	O00481
Synonym	Butyrophilin subfamily 3 member A1; CD277; BTN3A1; BTF5
Gene Background	Butyrophilin Subfamily 3 Member A1 (BTN3A1/CD277) is a type I transmembrane glycoprotein member of the Ig superfamily. It is expressed on a wide variety of immune cells. Similar to BTN3A2 and BTN3A3, BTN3A1 is composed of an extracellular N-terminal IgV and a membraneproximal IgC domain followed by a transmembrane domain and a cytoplasmic tail. These Ig domains are also found in B7 family costimulatory molecules, suggesting structural and functional similarities between the two protein families. BTN3A1 acts as a critical protein for the activation of Vγ9Vδ2 T cells following detection of distressed cells. The anti-tumor responses of Vγ9Vδ2 T cells may be enhanced with agonistic anti-BTNA3 antibodies.
Molecular Mass	25 KDa
Apmol Mass	28-35 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	Plays a role in T-cell activation and in the adaptive immune response. Regulates the proliferation of activated T-cells. Regulates the release of cytokines and IFNG by activated T-cells. Mediates the response of T-cells toward infected and transformed cells that are characterized by high levels of phosphorylated metabolites, such as isopentenyl pyrophosphate.
Subcellular Location	Cell membrane; Single-pass type I membrane protein.
Protein Families	Immunoglobulin superfamily, BTN/MOG family
Database References	HGNC: 1138 OMIM: 613593 KEGG: hsa:11119 STRING: 9606.ENSP00000289361 UniGene: PMID: 27911820 results show that ligand binding to BTN3A1 induces a conformational change within the intracellular domain that involves the JM region and is required for full activation. PMID: 28705810 findings show that changes in the juxtamembrane domain of BTN3A1, but not its transmembrane domain, induce a markedly enhanced or reduced gammadelta T cell reactivity PMID: 28461569 These findings support intracellular sensing of prenyl pyrophosphates by BTN3A1 rather than extracellular presentation. PMID: 26475929 Human gamma-delta T cells are activated by cytosolic interactions of BTN3A1 with soluble phosphoantigens and the cytoskeletal adaptor periplakin. PMID: 25637025 evidence that gene(s) on Chr6 in addition to BTN3A1 are mandatory for PAg-mediated activation of Vgamma9Vdelta2 T cells. PMID: 24890657 Ligand binding to the BTN3A1 B30.2 domain affects residues in the juxtamembrane region, suggesting ligand-induced conformational change. PMID: 25065532 These studies demonstrate that internal sensing of changes in pAg metabolite concentrations by BTN3A1 molecules is a critical step in Vgamma9Vdelta2 T cell detection of infection and tumorigenesis. PMID: 24703779 BTN3A1 represents an antigen-presenting molecule required for the activation of Vgamma9Vdelta2 T cells. PMID: 23872678 investigation of role of CD277 in activation/inactivation of T-lymphocytes: Data indicate that modulation of CD277 interaction (with agonists or blocking antibodies) with T-cell antigen receptor can modulate activation/inactivation of T-lymphocytes. PMID: 22767497 BTN3A1 is necessary for Vgamma9Vdelta2 activation and begin to unravel the extracellular events that occur during stimulation through the Vgamma9Vdelta2 T cell receptor. PMID: 22846996 CD277 triggering is not involved in CD16- or NKp46-induced NK cell activation. PMID: 21918970 Results point to a role for CD277 up-regulated by microenvironmental signals in the acquisition of a regulatory phenotype by ovarian tumor-associated myeloid cells. PMID: 21113407

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.