EphB1 / EPHT2 recombinant protein

Recombinant Human EphB1 / EPHT2 Protein (aa 565-984, His & GST tag)

Cat. Num. AAA2545045

• Gene Names: EPHB1; ELK; NET; Hek6; EPHT2
• Purity: > 95 % as determined by SDS-PAGE
• Synonyms: EphB1 / EPHT2; Recombinant Human EphB1 / EPHT2 Protein (aa 565-984; His & GST tag); EPHB1; ELK; EPHT2; HEK6; NET; EphB1 / EPHT2 recombinant protein

• Host: Baculovirus-Insect Cells
• Purity/Purification: > 95 % as determined by SDS-PAGE
• Form/Format: Supplied as sterile 20mM Tris, 500mM NaCl, 3mM DTT, pH 8.0, 10% gly
• Sequence Length: 984

• Application Notes: The recombinant human EPHB1 /GST chimera consists of 657 amino acids and has a calculated molecular mass of 75.3 kDa. The recombinant protein migrates as an approximately 66 kDa band in SDS-PAGE under reducing conditions.
• Predicted N Terminal: Met
• 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 EphB1 / EPHT2 recombinant protein

Background: Ephrin type -B receptor 1, also known as EphB1, 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. EphB2 receptor tyrosine kinase phosphorylates syndecan-2 and that this phosphorylation event is crucial for syndecan-2 clustering and spine formation. 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. 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 induce various important downstream effects and Eph receptors have been studied for their potential roles in the development of cancer. EphB receptor tyrosine kinases are enriched at synapses, suggesting that these receptors play a role in synapse formation or function. We find that EphrinB binding to EphB induces a direct interaction of EphB with NMDA-type glutamate receptors. This interaction occurs at the cell surface and is mediated by the extracellular regions of the two receptors, but does not require the kinase activity of EphB.

Description: A DNA sequence encoding the human EPHB1 (AAI11745.1) (Arg565-Ala984) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.

NCBI and Uniprot Product Information

• NCBI GI #: 111598956
• NCBI GeneID: 2047
• Molecular Weight: 26,906 Da
• NCBI Official Full Name: EPH receptor B1
• NCBI Official Synonym Full Names: EPH receptor B1
• NCBI Official Symbol: EPHB1
• NCBI Official Synonym Symbols: ELK; NET; Hek6; EPHT2
• NCBI Protein Information: ephrin type-B receptor 1
• UniProt Protein Name: Ephrin type-B receptor 1
• UniProt Gene Name: EPHB1
• UniProt Synonym Gene Names: ELK; EPHT2; HEK6; NET; EK6; hEK6; NET

NCBI Description

Ephrin receptors and their ligands, the ephrins, mediate numerous developmental processes, particularly in the nervous system. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. The Eph family of 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. Ephrin receptors make up the largest subgroup of the receptor tyrosine kinase (RTK) family. The protein encoded by this gene is a receptor for ephrin-B family members. [provided by RefSeq, Jul 2008]

Uniprot Description

EphB1: a receptor tyrosine kinase of the Eph family. Receptor for members of the ephrin-B family: ephrin-B1, -B2 and -B3. 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. The ligand-activated form of EphB1 interacts with GRB2, GRB10 and NCK through their respective SH2 domains. Four alternatively spliced isoforms are known.

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: 3q22.2

Cellular Component: cytosol; early endosome membrane; extracellular region; integral to plasma membrane; plasma membrane

Molecular Function: protein binding; transmembrane-ephrin receptor activity

Biological Process: angiogenesis; axon guidance; cell-substrate adhesion; central nervous system projection neuron axonogenesis; detection of temperature stimulus involved in sensory perception of pain; ephrin receptor signaling pathway; establishment of cell polarity; neurogenesis; positive regulation of synaptogenesis; protein amino acid autophosphorylation; regulation of JNK cascade; retinal ganglion cell axon guidance