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Description
Biotinylated EphB4 His&Avi Tag Protein, HumanProduct Specification Species Human Synonyms HFASD, LMPHM7, CMAVM2 Accession P54760 1 Amino Acid Sequence Leu16 Ala539, with C terminal His and Avitag Expression System HEK293 Molecular Weight 70 75kDa (Reducing) Purity 95% by SDS PAGE& SEC HPLC Endotoxin <1EU g Conjugation Biotin Tag Avi Tag, His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, 5% trehalose, PH7. 4 Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in
Product Specification
| Species | Human |
| Synonyms | HFASD, LMPHM7, CMAVM2 |
| Accession | P54760-1 |
| Amino Acid Sequence | Leu16-Ala539, with C-terminal His and Avitag |
| Expression System | HEK293 |
| Molecular Weight | 70-75kDa (Reducing) |
| Purity | ＞95% by SDS-PAGE& SEC-HPLC |
| Endotoxin | <1EU/μg |
| Conjugation | Biotin |
| Tag | Avi Tag, His Tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | PBS, 5% trehalose, PH7.4 |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage | · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
| Reference | 1.Fuller, T. et al. (2003) J. Cell Sci. 116:2461. 2. Noren, N.K. et al. (2004) Proc. Natl. Acad. Sci. 101:5583. 3. Wang, Z. et al. (2002) Blood 99:2740. 4. Inada, T. et al. (1997) Blood 89:2757. |
Background
Ephrin type-B receptor 4(EPHB4) is also known as HTK, MYK1 and TYRO11,is a member of Eph family. The Eph family of receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands. Ephrin receptors make up the largest subgroup of the receptor tyrosine kinase (RTK) family. 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. 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. The combination of forward signaling through EphB4 and reverse signaling through Ephrin-B2 promotes in vivo mammary tumor growth and tumor-associated angiogenesis. EphB4 promotes the differentiation of megakaryocytic and erythroid progenitors but not granulocytic or monocytic progenitors.
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