2μg（R: reducing conditions）
Human CD28, His tag
Human CD28, His tag
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Product Details
Product Details
Product Specification
| Species | Human |
| Synonyms | TP44 |
| Accession | P10747 |
| Amino Acid Sequence | Protein sequence (P10747, Asn19-Pro152, with C-10*His) NKILVKQSPMLVAYDNAVNLSCKYSYNLFSREFRASLHKGLDSAVEVCVVYGNYSQQLQVYSKTGFNCDGKLGNESVTFYLQNLYVNQTDIYFCKIEVMYPPPYLDNEKSNGTIIHVKGKHLCPSPLFPGPSKPGGGGSHHHHHHHHHH |
| Expression System | CHO |
| Molecular Weight | Predicted MW: 16.8 kDa Observed MW: 33-43 kDa |
| Purity | ＞95% by SDS-PAGE |
| Tag | with C-10*His |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | Lyophilized from a 0.2 μm filtered solution of 0.2M PBS, pH7.4. |
| Reconstitution | Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation. |
| Stability & Storage | 12 months from date of receipt, -20 to -70 °C as supplied. 6 months, -20 to -70 °C under sterile conditions after reconstitution. 1 week, 2 to 8 °C under sterile conditions after reconstitution. Please avoid repeated freeze-thaw cycles. |
Background
CD28 (Cluster of Differentiation 28) is one of the proteins expressed on T cells that provide co-stimulatory signals required for T cell activation and survival. T cell stimulation through CD28 in addition to the T-cell receptor (TCR) can provide a potent signal for the production of various interleukins (IL-6 in particular). CD28 is the receptor for CD80 (B7.1) and CD86 (B7.2) proteins. CD28 is the only B7 receptor constitutively expressed on naive T cells. As a homodimer of two chains with Ig domains binds B7 molecules on APCs and it can promotes T cells proliferation and differentiation, stimulates production of growth factors and induces the expression of anti-apoptotic proteins. CD28 has also been found to stimulate eosinophil granulocytes where its ligation with anti-CD28 leads to the release of IL-2, IL4, IL-13 and IFN-γ.
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SDS-PAGE
