膜杰作
Star Staining
分子别名（Synonym）
CD70,CD27LG,TNFSF7,TNFSF7G,CD27L
表达区间及表达系统（Source）
Human CD27 Ligand Protein, Mouse IgG2a Fc Tag (CDL-H525a) is expressed from human 293 cells (HEK293). It contains AA Gln 39 - Pro 193 (Accession # P32970-1).
Predicted N-terminus: Glu
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a mouse IgG2a Fc tag at the N-terminus
The protein has a calculated MW of 44.0 kDa. The protein migrates as 50-90 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 0.1 EU per μg by the LAL method.
纯度（Purity）
>85% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Human CD27 Ligand Protein, Mouse IgG2a Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 85%.
活性（Bioactivity）-ELISA
Immobilized Human CD27, His Tag (Cat. No. CD7-H522b) at 2 μg/mL (100 μL/well) can bind Human CD27 Ligand Protein, Mouse IgG2a Fc Tag (Cat. No. CDL-H525a) with a linear range of 0.1-8 ng/mL (QC tested).
Protocol
背景（Background）
Cluster of Differentiation 70 (CD70) is also known as CD27 ligand (CD27L / CD27LG), TNFSF7, TNFSF7G, is a type II transmembrane glycoprotein belonging to the TNF superfamily (TNFSF) and is a surface antigen found on activated T-and B-lymphocytes and mature dendritic cells. Binding of CD70 to its receptor CD27 induces in priming, effector functions, differentiation and memory formation of T-cells, and thus is invloved in the biological processes including T-cell activation, the proliferation of costimulated T-cells, as well as the generation of cytolytic T-cells. CD70 on T cells provides costimulatory signals that are required for T cell proliferation, clonal expansion and the promotion of effector T cell formation. CD70 on mouse B cell has been shown to inhibit terminal differentiation of activated B cells into plasma cells and enhances commitment to memory B cell responses. CD70 induces proliferation and IFNγ production, on NK cells.
