Recombinant Human Ephrin-A4 (EFNA4) , partial (Active)

Recombinant Human Ephrin-A4 (EFNA4) , partial (Active)

• CAS Number: 9000-83-3
• Gene Name: EFNA4
• UniProt: P52798
• Expression Region: 26-171aa
• Organism: Homo sapiens
• Target Sequence: LRHVVYWNSSNPRLLRGDAVVELGLNDYLDIVCPHYEGPGPPEGPETFALYMVDWPGYESCQAEGPRAYKRWVCSLPFGHVQFSEKIQRFTPFSLGFEFLPGETYYYISVPTPESSGQCLRLQVSVCCKERKSESAHPVGSPGESG
• Tag: C-terminal 6xHis-Fc-tagged
• Source: Mammalian cell
• Field of Research: Cardiovascular
• Assay Type: Active Protein & In Stock Protein
• Relevance: Ephrin-A4 is a member of the ephrin ligand family which binds members of the Eph receptor family. All ligands share a conserved extracellular sequence, which most likely corresponds to the receptor binding domain. Ephrin-A4 consists of approximately 125 amino acids and includes four invariant cysteines, It has been shown to bind EphA2, EphA3, EphA4, EphA5, EphA6, EphA7, and EphB1. Ephrin-A4 binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. It may play a role in the interaction between activated B-lymphocytes and dendritic cells in tonsils.
• Endotoxin: Less than 1.0 EU/µg as determined by LAL method.
• Purity: Greater than 95% as determined by SDS-PAGE.
• Activity: Yes
• Bioactivity: Measured by its binding ability in a functional ELISA. Immobilized Human EphA7-His at 2μg/ml can bind Human EFNA4-Fc-His, the ED50 of Recombinant Human EFNA4-Fc-His is 1.5190 ug/ml.
• Length: Partial
• Form: Lyophilized powder
• Buffer: Lyophilized from a 0.2 μm filtered PBS, pH 7.4.
• Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
• Function: Cell surface GPI-bound ligand for Eph receptors, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development. Binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. May play a role in the interaction between activated B-lymphocytes and dendritic cells in tonsils.
• Molecular Weight: 44.3 kDa
• Storage Conditions: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.