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Human EPHB2 Protein 3907

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Summary

  • Expression: HEK293
  • Functional: Yes (ELISA)
  • Amino Acid Range: Val19-Leu543
SKU: 3907parent Categories: , Tag:
Weight 1 lbs
Dimensions 9 × 5 × 2 in
accession

P29323

express system

HEK293

product tag

C-His

purity

> 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC

background

EphB2, a receptor tyrosine kinase for ephrin ligands, is overexpressed in various cancers and plays an important role in tumor progression. EPHB2 promotes endothelial-mesenchymal transition (EMT) and elicits associated pathologic characteristics of glioblastoma multiforme (GBM) such as invasion and migration. EPHB2 is epigenetically overexpressed in hypoxia, a condition highly prevalent in malignancy. Furthermore, HIF-2α is required for EPHB2 stabilization by hypoxia.

molecular weight

The protein has a predicted MW of 59.2 kDa. Due to glycosylation, the protein migrates to 65-75 kDa based on Tris-Bis PAGE result.

available size

100 µg, 500 µg

endotoxin

Less than 1EU per μg by the LAL method.

Human EPHB2 Protein 3907

protein
Size and concentration
100, 500µg and lyophilized
Form
Lyophilized
Storage Instructions
Valid for 12 months from date of receipt when stored at -80°C. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Storage buffer
Shipped at ambient temperature.
Purity
> 95% as determined by Tris-Bis PAGE
target relevance
EphB2, a receptor tyrosine kinase for ephrin ligands, is overexpressed in various cancers and plays an important role in tumor progression. EPHB2 promotes endothelial-mesenchymal transition (EMT) and elicits associated pathologic characteristics of glioblastoma multiforme (GBM) such as invasion and migration. EPHB2 is epigenetically overexpressed in hypoxia, a condition highly prevalent in malignancy. Furthermore, HIF-2α is required for EPHB2 stabilization by hypoxia.
Protein names
Ephrin type-B receptor 2 (EC 2.7.10.1) (Developmentally-regulated Eph-related tyrosine kinase) (ELK-related tyrosine kinase) (EPH tyrosine kinase 3) (EPH-like kinase 5) (EK5) (hEK5) (Renal carcinoma antigen NY-REN-47) (Tyrosine-protein kinase TYRO5) (Tyrosine-protein kinase receptor EPH-3) [Cleaved into: EphB2/CTF1; EphB2/CTF2]
Gene names
EPHB2,EPHB2 DRT EPHT3 EPTH3 ERK HEK5 TYRO5
Protein family
Protein kinase superfamily, Tyr protein kinase family, Ephrin receptor subfamily
Mass
9606Da
Function
Receptor tyrosine kinase which binds promiscuously transmembrane ephrin-B 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. Functions in axon guidance during development. Involved in the guidance of commissural axons, that form a major interhemispheric connection between the 2 temporal lobes of the cerebral cortex. Also involved in guidance of contralateral inner ear efferent growth cones at the midline and of retinal ganglion cell axons to the optic disk. In addition to axon guidance, also regulates dendritic spines development and maturation and stimulates the formation of excitatory synapses. Upon activation by EFNB1, abolishes the ARHGEF15-mediated negative regulation on excitatory synapse formation. Controls other aspects of development including angiogenesis, palate development and in inner ear development through regulation of endolymph production. Forward and reverse signaling through the EFNB2/EPHB2 complex regulate movement and adhesion of cells that tubularize the urethra and septate the cloaca. May function as a tumor suppressor. May be involved in the regulation of platelet activation and blood coagulation (PubMed:30213874).
Catalytic activity
#N/A
Subellular location
Cell membrane; Single-pass type I membrane protein. Cell projection, axon. Cell projection, dendrite .
Tissues
Brain, heart, lung, kidney, placenta, pancreas, liver and skeletal muscle. Preferentially expressed in fetal brain.
Structure
Heterotetramer upon binding of the ligand (By similarity). The heterotetramer is composed of an ephrin dimer and a receptor dimer (PubMed:17897949). Interacts (via PDZ-binding motif) with GRIP1 and PICK1 (via PDZ domain) (By similarity). Interacts with ARHGEF15; mediates ARHGEF15 phosphorylation, ubiquitination and degradation by the proteasome (By similarity). Interacts with AQP1; involved in endolymph production in the inner ear (By similarity). Interacts with SPSB1 and SPSB4 (PubMed:28931592). The phosphorylated form interacts with RASA1 (via SH2 domain 1) (By similarity). Interacts with EFNA5 (By similarity). Interacts with SH2D3C (By similarity).
Post-translational modification
Autophosphorylated; ligand binding stimulates autophosphorylation on tyrosine residues.; Polyubiquitinated; ligand binding stimulates ubiquitination (PubMed:28931592). Ubiquitinated by RNF186 at Lys-891, mainly through 'Lys-27'-linked polyubiquitin chains (PubMed:33280498).; Ligand binding induces cleavage by matrix metalloproteinases (MMPs) such as MMP7/MMP9, producing an EphB2/N-terminal fragment (NTF) and a C-terminal long fragment (EphB2-LF). EphB2-LF is further cleaved by MMPs, producing EphB2/CTF1 which is further cleaved by the PS1/gamma-secretase producing EphB2/CTF2.
Target Relevance information above includes information from UniProt accession: P29323
The UniProt Consortium

Data

SPR with Human EPHB2 Protein
Human Ephrin-B2, hFc Tag captured on CM5 Chip via Protein A can bind Human EPHB2, His Tag with an affinity constant of 82.97 pM as determined in SPR assay (Biacore T200).
ELISA with Human EPHB2 Protein
Immobilized Human EPHB2, His Tag at 0.5µg/ml (100µl/Well) on the plate. Dose response curve for Anti-EPHB2 Antibody, hFc Tag with the EC50 of 8.0ng/ml determined by ELISA (QC Test).
ELISA with Human EPHB2 Protein
Immobilized Human EPHB2, His Tag at 1µg/ml (100µl/Well) on the plate. Dose response curve for Human Ephrin-B2, hFc Tag with the EC50 of 3.2ng/ml determined by ELISA.
HPLC of Human EPHB2 Protein
The purity of Human EPHB2 is greater than 95% as determined by SEC-HPLC.
SDS-PAGE gel of Human EPHB2 Protein
Human EPHB2 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

Publications

Publications

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Published literature highly relevant to the biological target of this product and referencing this antibody or clone are retrieved from PubMed database provided by The United States National Library of Medicine at the National Institutes of Health.

Protocols

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