CD28
CD28全稱為分化簇28抗原,是T細胞表面關鍵的共刺激受體,其晶體結構呈現典型的免疫球蛋白樣二聚體構型。該蛋白通過與抗原呈遞細胞表面的B7分子(CD80/CD86)結合,為T細胞活化提供第二信號,這種雙信號機制決定了免疫應答的特異性與強度。在腫瘤微環境中,CD28信號缺失常導致T細胞耗竭,而過度激活則與類風濕性關節炎、系統性紅斑狼瘡等自身免疫疾病密切相關。目前全球已上市藥物阿巴西普通過競爭性結合B7分子間接調控CD28通路,用于中重度類風濕治療。在CAR-T細胞治療領域,第二代產品普遍采用CD28或4-1BB作為共刺激結構域,顯著提升了抗腫瘤活性。近年來針對CD28的新型雙特異性抗體進入臨床,既可阻斷病理性的過度激活,又能定向增強抗腫瘤免疫,這種雙向調節策略為免疫相關疾病的精準干預開辟了新路徑。
熱銷產品
Recombinant Human T-cell-specific surface glycoprotein CD28 (CD28), partial (CSB-MP004913HU1)
驗證數據

(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
驗證數據

Western Blot analysis of K562 cells using CD28 Polyclonal Antibody
Human soluble cluster of differentiation 28,sCD28 ELISA Kit (CSB-E09296h)
驗證數據

貨號:CSB-E09296h
規格:96T/48T
靈敏度:0.156 ng/mL
檢測范圍:0.625 ng/mL-40 ng/mL
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
CD28 Antibodies
CD28 for Homo sapiens (Human)
產品貨號 | 產品名稱 | 種屬反應性 | 應用類型 |
---|---|---|---|
CSB-PA005199 | CD28 Antibody | Human | WB, ELISA |
CSB-PA070302 | Phospho-CD28 (Y218) Antibody | Human,Mouse | WB, ELISA |
CD28 Proteins
CD28 Proteins for Homo sapiens (Human)
產品貨號 | 產品名稱 | 來源 |
---|---|---|
CSB-YP004913HU1 CSB-EP004913HU1 CSB-BP004913HU1 CSB-EP004913HU1-B |
Recombinant Human T-cell-specific surface glycoprotein CD28 (CD28), partial | Yeast E.coli Baculovirus In Vivo Biotinylation in E.coli |
CSB-CF004913HU | Recombinant Human T-cell-specific surface glycoprotein CD28 (CD28) | in vitro E.coli expression system |
CSB-MP004913HU1 | Recombinant Human T-cell-specific surface glycoprotein CD28 (CD28), partial | Mammalian cell |
CD28 Proteins for Mus musculus (Mouse)
產品貨號 | 產品名稱 | 來源 |
---|---|---|
CSB-YP004913MO1 CSB-EP004913MO1 CSB-BP004913MO1 CSB-MP004913MO1 CSB-EP004913MO1-B |
Recombinant Mouse T-cell-specific surface glycoprotein CD28 (Cd28), partial | Yeast E.coli Baculovirus Mammalian cell In Vivo Biotinylation in E.coli |
CSB-CF004913MO | Recombinant Mouse T-cell-specific surface glycoprotein CD28 (Cd28) | in vitro E.coli expression system |
CD28 Proteins for Oryctolagus cuniculus (Rabbit)
產品貨號 | 產品名稱 | 來源 |
---|---|---|
CSB-YP004913RB1 CSB-EP004913RB1 CSB-BP004913RB1 CSB-MP004913RB1 CSB-EP004913RB1-B |
Recombinant Rabbit T-cell-specific surface glycoprotein CD28 (CD28), partial | Yeast E.coli Baculovirus Mammalian cell In Vivo Biotinylation in E.coli |
CSB-CF004913RB | Recombinant Rabbit T-cell-specific surface glycoprotein CD28 (CD28) | in vitro E.coli expression system |
CD28 Proteins for Gallus gallus (Chicken)
產品貨號 | 產品名稱 | 來源 |
---|---|---|
CSB-YP004913CH1 CSB-EP004913CH1 CSB-BP004913CH1 CSB-MP004913CH1 CSB-EP004913CH1-B |
Recombinant Chicken T-cell-specific surface glycoprotein CD28 homolog (CD28), partial | Yeast E.coli Baculovirus Mammalian cell In Vivo Biotinylation in E.coli |
CSB-CF004913CH | Recombinant Chicken T-cell-specific surface glycoprotein CD28 homolog (CD28) | in vitro E.coli expression system |
CD28 Proteins for Felis catus (Cat) (Felis silvestris catus)
產品貨號 | 產品名稱 | 來源 |
---|---|---|
CSB-YP004913CA1 CSB-EP004913CA1 CSB-BP004913CA1 CSB-MP004913CA1 CSB-EP004913CA1-B |
Recombinant Cat T-cell-specific surface glycoprotein CD28 (CD28), partial | Yeast E.coli Baculovirus Mammalian cell In Vivo Biotinylation in E.coli |
CSB-CF004913CA | Recombinant Cat T-cell-specific surface glycoprotein CD28 (CD28) | in vitro E.coli expression system |
CD28 Proteins for Rattus norvegicus (Rat)
產品貨號 | 產品名稱 | 來源 |
---|---|---|
CSB-YP004913RA1 CSB-EP004913RA1 CSB-BP004913RA1 CSB-MP004913RA1 CSB-EP004913RA1-B |
Recombinant Rat T-cell-specific surface glycoprotein CD28 (Cd28), partial | Yeast E.coli Baculovirus Mammalian cell In Vivo Biotinylation in E.coli |
CSB-CF004913RA | Recombinant Rat T-cell-specific surface glycoprotein CD28 (Cd28) | in vitro E.coli expression system |
CD28 Proteins for Bos taurus (Bovine)
產品貨號 | 產品名稱 | 來源 |
---|---|---|
CSB-YP638916BO CSB-EP638916BO CSB-BP638916BO CSB-MP638916BO CSB-EP638916BO-B |
Recombinant Bovine T-cell-specific surface glycoprotein CD28 (CD28), partial | Yeast E.coli Baculovirus Mammalian cell In Vivo Biotinylation in E.coli |
CD28 ELISA Kit
CD28 ELISA Kit for Homo sapiens (Human)
產品貨號 | 產品名稱 | 樣本類型 | 靈敏度 |
---|---|---|---|
CSB-E09296h | Human soluble cluster of differentiation 28,sCD28 ELISA Kit | serum, plasma, tissue homogenates | 0.156 ng/mL |