Biological Information

Background Information:

Three tyrosine kinase receptors, designated TRKA, TRKB and TRKC, have been identified that selectively bind NGF, BDNF and NT-3, respectively; NT-4/5 also binds to the TRKB receptor. NGF binds to their specific TRK receptor to stimulate intracellular signaling pathways leading to specific protein phosphorylations and differential gene inductions. TRKA (High affinity nerve growth factor, TRK1 transforming tyrosine kinase protein, p140-TrkA, Trk-A) receptor kinases engage the activation of a branched proto-oncoprotein signaling pathway involving Shc, Src, Ras, Raf, mitogen-activated protein kinase, and other downstream effectors. Inhibitors of TRKA may be useful in the treatment of cancer.

Family:

Kinase

Sub Family:

RTK

Class:

Protein Tyrosine

Protein Name:

TRKA

Uniprot Number:

P04629

Protein Aliases:

TRK1-transforming tyrosine kinase protein|Tropomyosin-related kinase A|Tyrosine kinase receptor|Tyrosine kinase receptor A|Trk-A|gp140trk|p140-TrkA|high affinity nerve growth factor receptor

Gene Name:

NTRK1

Gene ID:

4914

Gene Aliases:

TRK|TRKA|MTC

Accession Number:

NM_002529

Organism:

Human

Construct Details:

440-end recombinant

Assay Information

Assay Type:

Biochemical

Assay Sub Type:

Enzymatic

Functional Mode:

Antagonist

Detection Method:

Radiometric

Measured Response:

Scintillation

Testing Information

Procedure Summary:

TrkA (h) is incubated with 8 mM MOPS pH 7.0, 0.2 mM EDTA, 250 µM KKKSPGEYVNIEFG, 10 mM MgAcetate and [g- 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 KKKSPGEYVNIEFG

Tracer:

33P

ATP Concentration:

[ATP]= 120µM (Km= 129µM )

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

1.55nM - IC50

Clinical Relevance

Therapeutic Area:

Oncology/Immuno-Oncology

Additional Information

Brand:

LeadHunter

Testing Location:

KP - France - Celle L'Evescault

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