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in vitro PHARMACOLOGY 2011 CATALOG - Cerep

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117<br />

TRKB<br />

Ref. 2902<br />

Q 3 weeks<br />

Included <strong>in</strong>:<br />

Comprehensive k<strong>in</strong>ase profile<br />

Source<br />

human recomb<strong>in</strong>ant<br />

Substrate<br />

ATP + Ulight-Poly GAT[EAY(1:1:1)]n<br />

(5 nM)<br />

Measured product phospho-Ulight-Poly GAT[EAY(1:1:1)]n<br />

Detection method LANCE<br />

Reference<br />

staurospor<strong>in</strong>e (IC 50 : 3.3 nM)<br />

Middlemas, D.S. et al. (1994) J. Biol. Chem., 269: 5458-5466.<br />

prote<strong>in</strong>-tyros<strong>in</strong>e k<strong>in</strong>ases [Rtk] ❚<br />

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<strong>Cerep</strong><br />

services<br />

Receptors<br />

TRKC<br />

Ref. 3080<br />

Q 3 weeks<br />

Included <strong>in</strong>:<br />

Comprehensive k<strong>in</strong>ase profile<br />

Source<br />

human recomb<strong>in</strong>ant<br />

Substrate<br />

ATP + Ulight-TK peptide<br />

(50 nM)<br />

Measured product phospho-Ulight-TK peptide<br />

Detection method LANCE<br />

Reference<br />

staurospor<strong>in</strong>e (IC 50 : 1.7 nM)<br />

Rob<strong>in</strong>son, L.L. et al. (2003) J. Cl<strong>in</strong>. Endocr<strong>in</strong>ol. Metab., 88: 3943-3951.<br />

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Ion<br />

channels<br />

Transporters<br />

Tyro3/Sky k<strong>in</strong>ase<br />

Ref. 3081<br />

Q 3 weeks<br />

Included <strong>in</strong>:<br />

Comprehensive k<strong>in</strong>ase profile<br />

Source<br />

human recomb<strong>in</strong>ant<br />

Substrate<br />

ATP + Ulight-TK peptide<br />

(50 nM)<br />

Measured product phospho-Ulight-TK peptide<br />

Detection method LANCE<br />

Reference<br />

staurospor<strong>in</strong>e (IC 50 : 6.1 nM)<br />

Lan, Z. et al. (2000) Blood, 95: 633-638.<br />

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K<strong>in</strong>ases<br />

Epigenetic &<br />

DNA-related<br />

enzymes<br />

VEGFR k<strong>in</strong>ase<br />

cellul ar<br />

Ref. 2696 Activator effect<br />

Ref. 2697 Inhibitor effect<br />

Q 3 weeks<br />

Source<br />

HUV-EC-C cells<br />

Measured product impedance<br />

Detection method cellular dielectric spectroscopy<br />

Activator effect Control VEGF (1 nM)<br />

Reference VEGF (EC 50 : 0.029 nM)<br />

Inhibitor effect Stimulant VEGF (0.1 nM)<br />

Reference VEGF receptor tyros<strong>in</strong>e k<strong>in</strong>ase<br />

<strong>in</strong>hibitor II (IC 50 : 168 nM)<br />

Furet, P. et al. (2003) Bioorg. Med. Chem. Lett., 13: 2967-2971.<br />

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[Solvent] must be kept 0.1%<br />

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Other<br />

enzymes<br />

Specialized<br />

cellular<br />

assays<br />

selected cerep assays<br />

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❚ Biochemical k<strong>in</strong>ase assays<br />

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K<strong>in</strong>ase assays are enzymatic assays mostly us<strong>in</strong>g activated k<strong>in</strong>ases. Those are usually full length k<strong>in</strong>ase or cytoplasmic doma<strong>in</strong> of RTK.<br />

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Assays are designed to be as close as possible to ATP and substrate Km.<br />

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The technology used to measure substrate phosphorylation is TR-FRET (HTRF ® or LANCE ® ). A few assays are cascade of activation.<br />

❚ Cellular k<strong>in</strong>ase assays<br />

In order to complement our exist<strong>in</strong>g biochemical assay platform, we have implemented cellular k<strong>in</strong>ase assays. These assays allow to<br />

confirm <strong>in</strong>hibitors activity <strong>in</strong> a relevant cellular background and profile their selectivity aga<strong>in</strong>st multiple signal<strong>in</strong>g pathways.<br />

- Cellular k<strong>in</strong>ase phosphorylation assays<br />

Cellular k<strong>in</strong>ase phosphorylation assays are developed us<strong>in</strong>g AlphaScreen ® Surefire ® assay kits. The assays are optimized for directly<br />

measur<strong>in</strong>g k<strong>in</strong>ase activation follow<strong>in</strong>g treatment of cells with activators of signal<strong>in</strong>g pathways.<br />

- Cellular tyros<strong>in</strong>e k<strong>in</strong>ase receptor activity assays<br />

We have demonstrated that the impedance-based technology can be used to monitor the activity of the ma<strong>in</strong> tyros<strong>in</strong>e k<strong>in</strong>ase receptor<br />

families. These label-free assays allow the identification of <strong>in</strong>hibitors target<strong>in</strong>g either the ligand b<strong>in</strong>d<strong>in</strong>g doma<strong>in</strong> or the k<strong>in</strong>ase doma<strong>in</strong>.<br />

These assays can be developed <strong>in</strong> virtually any cancer cell l<strong>in</strong>es or primary cells. As an example, we have developed and validated<br />

the EGFR cellular assay <strong>in</strong> the follow<strong>in</strong>g cancer cell l<strong>in</strong>es: A431, HELA and MDA-MB-231.<br />

❚ B<strong>in</strong>d<strong>in</strong>g k<strong>in</strong>ase assays<br />

See page 107.<br />

Standard<br />

profiles<br />

Test<strong>in</strong>g<br />

conditions<br />

Order<strong>in</strong>g<br />

<strong>in</strong>formation<br />

Assay list<br />

& <strong>in</strong>dex

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