Recombinant Human TNFSF7 Protein

Name: Recombinant Human TNFSF7 Protein
Brand: Beta LifeScience
SKU: BL-0865PS
Availability: InStock

Collections: Cytokines and growth factors, Recombinant proteins, Tumor necrosis factors and receptors (tnfs)

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Product Overview

Tag	N/A
Host Species	Human
Synonym	CD70 Molecule, TNFSF7, CD27L, Tumor Necrosis Factor(Ligand) Superfamily, Member 7, Tumor Necrosis Factor Ligand Superfamily Member7, CD70 Antigen, CD27 Ligand, CD27LG, CD27-L, Surface Antigen CD70, Ki-24Antigen, CD70 antigen.
Background	CD70 also known as TNFSF7 is a cytokine which binds to CD27. TNFSF7takes part in T-cell activation as well as induces the proliferation ofcostimulated T-cells. Moreover, TNFSF7 enhances the generation of cytolyticT-cells. Among the diseases which are associated with TNFSF7: Include acutemyocarditis & Myocarditis.
Description	TNFSF7 Human Recombinant expressed in E.Coli is a single,non-glycosylated polypeptide chain containing 178a.a. (39-193 a.a) andhaving a molecular weight of 19.5kDa.TNFSF7 is fused to a 23a.a. His-tag at N-terminusand purified by unique purification methods.
Source	E.coli
AA Sequence	MGSSHHHHHHSSGLVPRGSH MGSQRFAQAQQQLPLESLGW DVAELQLNHT GPQQDPRLYW QGGPALGRSF LHGPELDKGQ LRIHRDGIYM VHIQVTLAICSSTTASRHHP TTLAVGICSP ASRSISLLRL SFHQGCTIAS QRLTPLARGD TLCTNLTGTL LPSRNTDETFFGVQWVRP.
Purity	>80% as determined by SDS-PAGE.
Endotoxin	<1.0 EU per μg by the LAL method.
Formulation	TNFSF7 protein solution (1mg/ml) containing 20mM Tris-HClbuffer (pH 8.0) and 10% glycerol.
Stability	Recombinant protein is stable for 12 months at -70°C
Usage	For Research Use Only
Storage	Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

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.