Human CD28 Protein, Fc Tag
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产品编号
KMP2380
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别名
T细胞特异性表面糖蛋白CD28, CD28 molecule, Tp44
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规格
- 50ug
- 100ug
- 200ug
产品介绍
| Alias | T细胞特异性表面糖蛋白CD28, CD28 molecule, Tp44 |
| Catalog Number | KMP2380 |
| Product Description | The Human CD28 Protein(KMP2380) is produced in HEK293 Cells and the target gene encoding Asn19-Pro152 is expressed with a Fc tag at the C-terminus. |
| Molecular Name | CD28 |
| Species | Human |
| Host | HEK293 Cells |
| Size | 50ug, 100ug, 200ug |
| Purity | >95% as determined by SDS-PAGE |
| Concentration | 联系销售经理获得最新批次的浓度 |
| Purification | Affinity purification |
| Endotoxin | <1.0 EU/ug determined by the LAL method |
| Formulation | 20mM Tris, 150mM NaCl, pH8.0 |
| Background | T-cell-specific surface glycoprotein CD28(CD28) is a single-pass typeI membrane protein which contains one Ig-likeV-type(immunoglobulin-like) domain. It belongs to the immunoglobulin(Ig) superfamily. CD28 is one of the molecules expressed on T cells that provide co-stimulatory signals, which are required for T cell activation.CD28 co-stimulation is necessary for CD4 positive T-cell proliferation and survival, interleukin-2 production, and T-helper type-2 development. Human post-thymic regulatory T cells require CD28 co-stimulation to expand and maintain potent suppressive function in vivo. Apoptosis plays a key role in the age-related decline of CD28 expression and in immunosenescence. CD28 is the receptor for CD80(B7.1) and CD86(B7.2). When activated by Toll-like receptor ligands, the CD80 expression is upregulated in antigen presenting cells(APCs). The CD86 expression on antigen presenting cells is constitutive. CD28 is the only B7 receptor constitutively expressed on naive T cells. |
| Cross-reactivity | No cross-reactivity with other antigens or proteins. |
| Predicted Molecular Weight | 15.15 kDa |
| Predicted N Terminus | Met |
| Storage Condition | Aliquot and store at -20℃ to -80℃. Avoid repeated freezing and thawing cycles. |
| Shipping Condition | In general, the proteins are provided as lyophilized powder which are shipped at ambient temperature. They are shipped out in dry ice if supplied in liquid form. |
| Uniprot ID | A8K632 |
| Product Declaration | 该产品仅供科研使用，不可直接用于人体或注射。 |
| Temperature Range | Store the product under sterile conditions after opening at -80℃ for 12 months. Store the lyophilized powder at -25℃. Avoid repeated freeze-thaw cycles. |
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