EphA7 active protein

EphA7 Protein, Human, Recombinant (His Tag)

Cat. Num. AAA8120900

• Gene Names: EPHA7; EHK3; HEK11
• Purity: >98% as determined by SDS-PAGE
• Synonyms: EphA7; EphA7 Protein; Human; Recombinant (His Tag); Human EphA7/EHK3 Protein (His Tag); EHK-3 Protein; EHK3 Protein; EK11 Protein; EPHA7 Protein; HEK11 Protein; Eph receptor A7; EphA7 active protein

• Host: HEK293 Cells
• Purity/Purification: >98% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Met1-Ile556

• Species: Human
• Activity: Measured by its binding ability in a functional ELISA. Immobilized human EphA7 at 2ug/ml (100uL/well) can bind mouse EphrinA4 with a linear range of 0.08-10ng/mL.
• Endotoxin: <1.0EU per ug of the protein as determined by the LAL method
• Predicted N Terminal: Glu 28
• Tag: C-His
• Protein Construction: A DNA sequence encoding the human EPHA7 (NP_004431.1) extracellular domain (Met 1-Ile 556) was fused with a polyhistidine tag at the C-terminus.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid.; They are shipped out with blue ice.

SDS-Page

Related Product Information for EphA7 active protein

Background: Ephrin type-A receptor 7, also known as EphA7, 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. 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). Ligand-mediated activation of Ephs induces various important downstream effects and Eph receptors have been studied for their potential roles in the development of cancer. Down-regulation of EphA7 secondary to hypermethylation has been reported in colorectal cancer. The expression of EphA7 was reduced in all tested gastric cancer cell lines; however, there is marked variability in expression among gastric carcinoma specimens. EphA7 may have roles in the pathogenesis and development of gastric carcinomas.

Product Categories/Family for EphA7 active protein

Actin Dynamics Signaling Pathway

References

Rashid T, et al. (2005) Opposing gradients of ephrin-As and EphA7 in the superior colliculus are essential for topographic mapping in the mammalian visual system. Neuron. 47(1): 57-69.Wang J, et al. (2007) Differential expression of EphA7 receptor tyrosine kinase in gastric carcinoma. Hum Pathol. 38(11): 1649-56.Rogers JH, et al. (1999) Distribution of the receptor EphA7 and its ligands in development of the mouse nervous system. Brain Res Mol Brain Res. 74(1-2): 225-30.

NCBI and Uniprot Product Information

• NCBI GI #: 4758282
• NCBI GeneID: 2045
• NCBI Accession #: NP_004431.1
• NCBI GenBank Nucleotide #: NM_004440.3
• UniProt Accession #: Q15375; Q59G40; Q5VTU0; Q8N368; Q9H124; A0AUX7; B2R8W1; B7ZLJ9; B7ZLK0
• Molecular Weight: 112,097 Da
• NCBI Official Full Name: ephrin type-A receptor 7
• NCBI Official Synonym Full Names: EPH receptor A7
• NCBI Official Symbol: EPHA7
• NCBI Official Synonym Symbols: EHK3; HEK11
• NCBI Protein Information: ephrin type-A receptor 7; EK11; EHK-3; EPH-like kinase 11; EPH homology kinase 3; Eph homology kinase-3; receptor protein-tyrosine kinase HEK11; tyrosine-protein kinase receptor EHK-3
• UniProt Protein Name: Ephrin type-A receptor 7
• Protein Family: Ephrin type-A receptor
• UniProt Gene Name: EPHA7
• UniProt Synonym Gene Names: EHK3; HEK11; EHK-3; EK11; hEK11
• UniProt Entry Name: EPHA7_HUMAN

NCBI Description

This gene belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family. 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. [provided by RefSeq, Jul 2008]

Uniprot Description

EphA7: a widely-expressed receptor tyrosine kinase of the Eph family. Receptor for members of the ephrin-A family. Binds to ephrin-A1, -A2, -A3, -A4 and -A5. Contains 1 sterile alpha motif (SAM) and two fibronectin type III domains.

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

Chromosomal Location of Human Ortholog: 6q16.1

Cellular Component: postsynaptic membrane; cell soma; integral to plasma membrane; dendrite; plasma membrane; neuromuscular junction

Molecular Function: protein binding; ephrin receptor binding; chemorepellent activity; protein-tyrosine kinase activity; GPI-linked ephrin receptor activity; axon guidance receptor activity; ATP binding

Biological Process: axon guidance; regulation of cell-cell adhesion; peptidyl-tyrosine phosphorylation; branching morphogenesis of a nerve; regulation of protein amino acid autophosphorylation; positive regulation of neuron apoptosis; ephrin receptor signaling pathway; negative chemotaxis; brain development; regulation of caspase activity; phosphorylation; regulation of peptidyl-tyrosine phosphorylation; retinal ganglion cell axon guidance