EphA4 recombinant protein

Recombinant Rat EphA4 Protein (Fc tag)

Cat. Num. AAA2547459

• Gene Names: Epha4; RGD1560587
• Purity: > 98 % as determined by SDS-PAGE
• Synonyms: EphA4; Recombinant Rat EphA4 Protein (Fc tag); EPHA4; EphA4 recombinant protein

• Host: Human Cells
• Purity/Purification: > 98 % as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH 7.4
• Sequence Length: 986

• Application Notes: The recombinant rat EPHA4/Fc is a disulfide-linked homodimer. The reduced monomer comprises 769 amino acids and has a predicted molecular mass of 85.3 kDa. The apparent molecular mass of the protein is approximately 98 kDa in SDS-PAGE under reducing conditions.
• Predicted N Terminal: Val 20
• Endotoxin: < 1.0 EU per mug of the protein as determined by the LAL method
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -70 degree C

SDS-PAGE

Related Product Information for EphA4 recombinant protein

Background: EPH receptor A4 (ephrin type -A receptor 4), also known as EphA4, belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family which 16 known receptors (14 found in mammals) are involved: EPHA1, EPHA2, EPHA3, EPHA4, EPHA5, EPHA6, EPHA7, EPHA8, EPHA9, EPHA10, EPHB1, EPHB2, EPHB3, EPHB4, EPHB5, EPHB6. The Eph family of receptor tyrosine kinases (comprising EphA and EphB receptors) has been implicated in synapse formation and the regulation of synaptic function and plasticity6. EphA4 is enriched on dendritic spines of pyramidal neurons in the adult mouse hippocampus, and ephrin-A3 is localized on astrocytic processes that envelop spines. Eph receptor-mediated signaling, which is triggered by ephrins7, probably modifies the properties of synapses during synaptic activation and remodeling. Ephrin receptors are components of cell signalling pathways involved in animal growth and development, forming the largest sub-family of receptor tyrosine kinases (RTKs). The extracellular domain of an EphA4 interacts with ephrin ligands, which may be tethered to neighbouring cells. Ligand-mediated activation of Ephs induce various important downstream effects and Eph receptors have been studied for their potential roles in the development of cancer.

Description: A DNA sequence encoding the rat EPHA4 (D3ZZK3) (Met1-Tyr547) was expressed, fused with the Fc region of human IgG1 at the C-terminus.

NCBI and Uniprot Product Information

• NCBI GI #: 241666404
• NCBI GeneID: 316539
• NCBI Accession #: NP_001155883.1
• NCBI GenBank Nucleotide #: NM_001162411.1
• UniProt Accession #: D3ZZK3
• Molecular Weight: 109,838 Da
• NCBI Official Full Name: ephrin type-A receptor 4
• NCBI Official Synonym Full Names: Eph receptor A4
• NCBI Official Symbol: Epha4
• NCBI Official Synonym Symbols: RGD1560587
• NCBI Protein Information: ephrin type-A receptor 4
• UniProt Protein Name: Protein Epha4
• Protein Family: Ephrin type-A receptor
• UniProt Gene Name: Epha4

Uniprot Description

EphA4: a tyrosine kinase receptor of the Eph family. Receptor for members of the ephrin-A family. Binds to ephrin-A1, -A4 and -A5. Binds more poorly to ephrin-A2 and -A3. May play a role in hindbrain pattern formation. The Eph receptor tyrosine kinase family, the largest in the tyrosine kinase group, has fourteen members. They bind membrane-anchored ligands, ephrins, at sites of cell-cell contact, regulating the repulsion and adhesion of cells that underlie the establishment, maintenance, and remodeling of patterns of cellular organization. Eph signals are particularly important in regulating cell adhesion and cell migration during development, axon guidance, homeostasis and disease. EphA receptors bind to GPI-anchored ephrin-A ligands, while EphB receptors bind to ephrin-B proteins that have a transmembrane and cytoplasmic domain. Interactions between EphB receptor kinases and ephrin-B proteins transduce signals bidirectionally, signaling to both interacting cell types. Eph receptors and ephrins also regulate the adhesion of endothelial cells and are required for the remodeling of blood vessels.

Protein type: EC 2.7.10.1; Eph family; Kinase, protein; Membrane protein, integral; Protein kinase, TK; Protein kinase, tyrosine (receptor); TK group

Chromosomal Location of Human Ortholog: 9q33

Cellular Component: axon; cell projection; cell surface; cytoplasm; dendrite; dendritic spine; early endosome membrane; endoplasmic reticulum; filopodium; Golgi apparatus; integral to plasma membrane; mitochondrial outer membrane; nerve terminal; neuromuscular junction; perikaryon; plasma membrane; postsynaptic density

Molecular Function: ephrin receptor binding; GPI-linked ephrin receptor activity; PH domain binding; protein binding; protein kinase activity; transmembrane-ephrin receptor activity

Biological Process: adult walking behavior; axon guidance; corticospinal tract morphogenesis; glial cell migration; motor axon guidance; negative regulation of axon regeneration; peptidyl-tyrosine phosphorylation; positive regulation of dendrite morphogenesis; positive regulation of JNK activity; protein amino acid autophosphorylation; regulation of astrocyte differentiation; regulation of axonogenesis; regulation of GTPase activity