CD28 Protein, Human, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 42 kDa and the accession number is P10747-1.
生物活性 | 1.Loaded Recombinant Human B7-1 Protein, His Tag on His1K Biosensor, can bind Recombinant Human CD28 Protein, hFc Tag with an affinity constant of 0.46 µM as determined in BLI assay (QC tested). 2.Loaded Recombinant Human CD86 Protein, His Tag on His1K Biosensor, can bind Recombinant Human CD28 Protein, hFc Tag with an affinity constant of 2.72 µM as determined in BLI assay (QC tested). |
产品描述 | CD28 Protein, Human, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 42 kDa and the accession number is P10747-1. |
种属 | Human |
表达系统 | HEK293 Cells |
标签 | C-hFc |
蛋白编号 | P10747-1 |
别名 | Tp44, CD28 molecule |
蛋白构建 | The Human CD28 isoform 1 (P10747-1) extracellular domain (Met 1-Pro 152) was was fused with the Fc region of Human IgG1 at the C-terminus. |
蛋白纯度 |
> 90 % as determined by SDS-PAGE
|
分子量 | 42 kDa (predicted) |
内毒素 | < 1.0 EU/μg of the protein as determined by the LAL method. |
缓冲液 | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
复溶方法 | A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information. |
存储 |
It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
运输方式 |
In general, Lyophilized powders are shipping with blue ice. |
研究背景 | CD28 (Cluster of Differentiation 28) is a disulphide-bonded glycoprotein belonging to the immunoglobulin (Ig) superfamily, and structurally consists of a single Ig V-like extracellular domain, a transmembrane domain and an intracellular domain. Mouse CD28 is constitutively expressed on the surface of all murine T cells and on developing thymocytes as disulfide-linked homodimers or as monomers. CD28 can binds the B7-1 and B7-2 ligand, and together perform important functions in the T and B cell response pathways. B7/CD28 family members, which can augment or antagonize T-cell receptor signaling, in the regulation of central and peripheral T-cell tolerance. CD28 is thus involved in T-cell activation, the induction of cell proliferation and cytokine production and promotion of T-cell survival.Cancer ImmunotherapyCo-stimulatory Immune Checkpoint TargetsImmune CheckpointImmune Checkpoint Detection: AntibodiesImmune Checkpoint Detection: ELISA AntibodiesImmune Checkpoint Detection: FCM AntibodiesImmune Checkpoint Detection: IHC AntibodiesImmune Checkpoint Detection: WB AntibodiesImmune Checkpoint TargetsImmunotherapyTargeted Therapy |
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CD28 Protein, Human, Recombinant (hFc) Tp44 CD28 molecule recombinant recombinant-proteins proteins protein