Recombinant Human Ephrin type-A receptor 4 (EPHA4), partial (Active)

Product Description

Recombinant Human Ephrin type-A receptor 4 (EPHA4), partial (Active) is available at Gentaur for Next week Delivery.

Gene Name: EPHA4

Alternative Names : Ephrin type-A receptor 4;HEK8; SEK; TYRO1;EPHA4;Tyrosine-protein kinase receptor SEK;Tyrosine-protein kinase TYRO1;EK8;hEK8;EPH-like kinase 8

Expression Region : 20-547aa

AA Sequence : VTGSRVYPANEVTLLDSRSVQGELGWIASPLEGGWEEVSIMDEKNTPIRTYQVCNVMEPSQNNWLRTDWITREGAQRVYIEIKFTLRDCNSLPGVMGTCKETFNLYYYESDNDKERFIRENQFVKIDTIAADESFTQVDIGDRIMKLNTEIRDVGPLSKKGFYLAFQDVGACIALVSVRVFYKKCPLTVRNLAQFPDTITGADTSSLVEVRGSCVNNSEEKDVPKMYCGADGEWLVPIGNCLCNAGHEERSGECQACKIGYYKALSTDATCAKCPPHSYSVWEGATSCTCDRGFFRADNDAASMPCTRPPSAPLNLISNVNETSVNLEWSSPQNTGGRQDISYNVVCKKCGAGDPSKCRPCGSGVHYTPQQNGLKTTKVSITDLLAHTNYTFEIWAVNGVSKYNPNPDQSVSVTVTTNQAAPSSIALVQAKEVTRYSVALAWLEPDRPNGVILEYEVKYYEKDQNERSYRIVRTAARNTDIKGLNPLTSYVFHVRARTAAGYGDFSEPLEVTTNTVPSRIIGDGANST

Sequence Info : Partial

Tag Info : C-terminal FC-tagged

Theoretical MW : 85.6 kDa

Storage Buffer : Lyophilized from a 0.2 ?m Filtered 20 mM Tris-HCl, 150 mM NaCl, pH 8.0

Endotoxin Level : Less than 1.0 EU/µg as determined by LAL method.-

Biological Activity : The ED50 as determined by its ability to binding recombinant human Ephrin-A5 used funtional ELISA is 66.8nM when EphA4 2ug/ml in a solid phases. 

Storage : Short term: -20°C; Long term: -80°C. Minimize freeze and thaw cycles.

Research Area : Signal Transduction

Restriction : For Research Use Only. Not for use in diagnostic procedures, drug use, or for administration to humans or animals.

Relevance : Ephrin type-A receptor 4(EPHA4) belongs to the protein kinase superfamily and Ephrin receptor subfamily. EPHA4 contains 1 Eph LBD domain, 2 fibronectin type-III domains, 1 protein kinase domain and 1 SAM domain. EPH and EPH-related receptors have been implicated in mediating developmental events, particularly in the nervous system. Receptors in the EPH subfamily typically have a single kinase domain and an extracellular region containing a Cys-rich domain and 2 fibronectin type III repeats. The ephrin 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.

Function : Receptor tyrosine kinase which binds membrane-bound ephrin family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Highly promiscuous, it has the unique property among Eph receptors to bind and to be physiologically activated by both GPI-anchored ephrin-A and transmembrane ephrin-B ligands including EFNA1 and EFNB3. Upon activation by ephrin ligands, modulates cell morphology and integrin-dependent cell adhesion through regulation of the Rac, Rap and Rho GTPases activity. Plays an important role in the development of the nervous system controlling different steps of axonal guidance including the establishment of the corticospinal projections. May also control the segregation of motor and sensory axons during neuromuscular circuit development. In addition to its role in axonal guidance plays a role in synaptic plasticity. Activated by EFNA1 phosphorylates CDK5 at 'Tyr-15' which in turn phosphorylates NGEF regulating RHOA and dendritic spine morphogenesis. In the nervous system, plays also a role in repair after injury preventing axonal regeneration and in angiogenesis playing a role in central nervous system vascular formation. Additionally, its promiscuity makes it available to participate in a variety of cell-cell signaling regulating for instance the development of the thymic epithelium.

Involvement in disease :

Subcellular location : Cell membrane, Single-pass type I membrane protein, Cell projection, axon, Cell projection, dendrite, Cell junction, synapse, postsynaptic cell membrane, postsynaptic density, Early endosome

Protein Families : Protein kinase superfamily, Tyr protein kinase family, Ephrin receptor subfamily

Tissue Specificity : Ubiquitous.

Paythway : Inhibitorsofaxonalregeneration

Uniprot ID : P54764