Biological Information

Background Information:

Eph (erythropoietin-producing hepatocellular) family tyrosine kinase receptors consist of two groups: EphA group members respond to ephrin-A, which is anchored to the cell membrane by glycosylphosphatidylinositol, whereas EphB group members respond to ephrin-B, containing a transmembrane domain. Among them, only EphA4 can cross-respond to both ephrin-A and -B. EphB1 (EPHT2, NET, Hek6, ELK) is expressed predominantly in developing neural structures in embryos, in vascular epithelium of kidney and other tissues. EphB1 signals regulation of cell attachment and cell-cell assembly and are implicated in neuronal and vascular cell targeting.

Family:

Kinase

Sub Family:

RTK

Class:

Protein Tyrosine

Protein Name:

EphB1

Uniprot Number:

P54762

Protein Aliases:

ELK|EPH tyrosine kinase 2|EPH-like kinase 6|EK6|hEK6|Neuronally-expressed EPH-related tyrosine kinase|NET|Tyrosine-protein kinase receptor EPH-2

Gene Name:

EPHB1

Gene ID:

2047

Gene Aliases:

Hek6

Accession Number:

NM_004441

Organism:

Human

Construct Details:

564-end recombinant

Assay Information

Assay Type:

Biochemical

Assay Sub Type:

Enzymatic

Functional Mode:

Antagonist

Detection Method:

Radiometric

Measured Response:

Scintillation

Testing Information

Procedure Summary:

EphB1 (h) is incubated with 8 mM MOPS pH 7.0, 0.2 mM EDTA, 250 µM KVEKIGEGTYGVVYK, 10 mM MgAcetate and [gamma-33P]-ATP (specific activity and concentration as required). The reaction is initiated by the addition of the Mg/ATP mix. After incubation for 40 minutes at room temperature, the reaction is stopped by the addition of phosphoric acid to a concentration of 0.5%. An aliquot of the reaction is then spotted onto a filter and washed four times for 4 minutes in 0.425% phosphoric acid and once in methanol prior to drying and scintillation counting.

Substrate:

250 µM KVEKIGEGTYGVVYK

Tracer:

33P

ATP Concentration:

[ATP]= 200µM (Km= 578.35µM )

Incubation:

40 min at Room temperature

Control Inhibitor:

Staurosporine

Test Sample Requirements:

Please provide compounds dissolved in 100% DMSO (PBS or HBSS prohibited).
Stock solution should be ≥50× the final assay concentration (a 10 mM stock is also acceptable).
Required volume:
– <60 kinase assays: 120 µL of 50× stock
– ≥60 assays: 420 µL of 50× stock
If you supply 10 mM stocks or powder (pre-weighed), we will apply the appropriate conversion.
For batches of ~50 compounds supplied as solids, the TAT will be extended.

Minimum Order Quantity:

2

Turnaround Time

Standard:

6 Business Days

Service Scheduling Note:

Assay is run on a weekly schedule beginning on Friday.  Compounds and purchase order must be received on or before 13:00 CET Thursday for the order to be included on the service run that begins on Friday of the same week.

Reference Compound Data

PubChem ID

122130844

Name

Staurosporine

Measurement

129nM - IC50

Clinical Relevance

Therapeutic Area:

Oncology/Immuno-Oncology

Adverse / Beneficial Action:

Inhibition of EphB1 may prevent neuronal and endothelial cell-cell recognition and developmental assembly and may also reduce tumor progression.

Additional Information

Brand:

LeadHunter

Testing Location:

KP - France - Celle L'Evescault

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