| 货号 | FAB3038G-100UG |
| 别名 | EC 2.7.10; EC 2.7.10.1; EPH receptor B4; EphB4; ephrin type-B receptor 4; hepatoma transmembrane kinase; Htk; HTKephrin receptor EphB4; Mdk2; Myk1; soluble EPHB4 variant 1; soluble EPHB4 variant 2; soluble EPHB4 variant 3; Tyro11; Tyrosine-protein kinase receptor HTK; Tyrosine-protein kinase TYRO11 | 全称 | Eph Receptor B4 |
| 应用 | Flow Cytometry |
| 目标/特异性 | Detects human EphB4 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human EphA1, A2, A5, A6, A10, B2, B3, B6, recombinant mouse EphA3, A4, or recombinant rat EphB1 is observed. |
| 使用方法 | Flow Cytometry: 0.25-1 µg/106cells |
| 来源 | The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 2050 (Human); 13846 (Mouse) |
| 免疫原 | Mouse myeloma cell line NS0-derived recombinant human EphB4 Ala16-Ala539 Accession # AAH52804 |
| 生物活性 | Human |
| 标记 | Alexa Fluor 488 |
| 背景 | EphB4, also known as Htk, Myk1, Tyro11, and Mdk2, is a member of the Eph receptor tyrosine kinase family and binds Ephrin-B2. The A and B class Eph proteins have a common structural organization (1‑4). The human EphB4 cDNA encodes a 987 amino acid precursor that includes a 15 amino acid (aa) signal sequence, a 524 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 427 aa cytoplasmic domain (5). The ECD contains an N-terminal globular domain, a cysteine‑rich domain, and two fibronectin type III domains. The cytoplasmic domain contains a juxtamembrane motif with two tyrosine residues which are the major autophosphorylation sites, a kinase domain, and a conserved sterile alpha motif (SAM) (5). Activation of kinase activity occurs after membrane-bound or clustered ligand recognition and binding. The ECD of human EphB4 shares 89% aa sequence identity with mouse EphB4 and 42‑45% aa sequence identity with human EphB1, 2, and 3. EphB4 is expressed preferentially on venous endothelial cells (EC) and inhibits cell-cell adhesion, chemotaxis, and angiogenesis. Opposing effects are induced by signaling through Ephrin-B2 expressed on arterial EC: adhesion, endothelial cell migration, and vessel sprouting (6). EphB4 singaling contributes to new vascularization by guiding venous EC away from Ephrin-B2 expressing EC. Ephrin-B2 signaling induces arterial EC to migrate towards nascent EphB4 expressing vessels (6). The combination of forward signaling through EphB4 and reverse signaling through Ephrin-B2 promotes in vivo mammary tumor growth and tumor‑associated angiogenesis (7). EphB4 promotes the differentiation of megakaryocytic and erythroid progenitors but not granulocytic or monocytic progenitors (8, 9). |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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