Biological Information
Background Information:
The receptor tyrosine kinase FLT-3 (fms-related tyrosine kinase 3, STK1) appears to play an important role in the development of hematopoietic stemcells, dendritic cells, B progenitor cells, and natural killer (NK) cells. On binding FLT3 ligand, the wild-type receptor dimerizes, activating its tyrosine kinase domain with resultant autophosphorylation. RAS-GAP, PLC-g, PI3-kinase, STAT5, and ERK1/2 are important signaling proteins linked to activation of FLT3. FLT3 is aberrantly expressed in the malignant cells in the majority of patients with acute myeloid leukemia (AML).
Family:
Kinase
Sub Family:
RTK
Class:
Protein Tyrosine
Protein Name:
FLT3
Uniprot Number:
P36888
Protein Aliases:
FL cytokine receptor|Fetal liver kinase-2|FLK-2|Fms-like tyrosine kinase 3|FLT-3|Stem cell tyrosine kinase 1|STK-1|CD antigen CD135
Gene Name:
FLT3
Gene ID:
2322
Gene Aliases:
STK1|FLK2|CD135
Accession Number:
NM_004119
Organism:
Human
Construct Details:
564-end; D835Y recombinant
Assay Information
Assay Type:
Biochemical
Assay Sub Type:
Enzymatic
Functional Mode:
Antagonist
Detection Method:
Radiometric
Measured Response:
Scintillation
Testing Information
Procedure Summary:
Flt3 (D835Y) (h) is incubated with 8 mM MOPS pH 7.0, 0.2 mM EDTA, 50 µM EAIYAAPFAKKK, 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:
50 uM EAIYAAPFAKKK
Tracer:
33P
ATP Concentration:
[ATP]= 45µM (Km= 52µM )
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
Clinical Relevance
Therapeutic Area:
Oncology/Immuno-Oncology
Adverse / Beneficial Action:
FLT3 inhibitors may lead to new approaches for the treatment of acute myeloid leukemia (AML) and other forms of cancer.
Additional Information
Brand:
LeadHunter
Testing Location:
KP - France - Celle L'Evescault
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