The HTRF KinEASE assay series is a semi-universal biochemical platform to study kinase activity. The STK3 kit uses a specific substrate compatible with various Serine/thronine kinases - cf. validation data provided on this page.
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  • Low enzyme consumption Low enzyme consumption
The HTRF KinEASE assay series is a semi-universal biochemical platform to study kinase activity. The STK3 kit uses a specific substrate compatible with various Serine/thronine kinases - cf. validation data provided on this page.
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Overview

The HTRF KinEASE kit series provides a simple biochemical approach to study kinase activity, screen for inhibitors and characterize them. Three STK and one TK kits, offer a semi-universal method for assessing phosphorylation on Serine/Threonine and Tyrosine residues, respectively. The HTRF KinEASE STK S3 assay has been validated on 43 Serine/Threonine kinases. The assay validation section of this page lists them and provides technical tips for setup. The kit series also include a Discovery kit to help determine which of three STK kits is appropriate when working with a non-validated enzyme.

Benefits

  • COMPATIBLE WITH UP TO MM ATP KMS
  • SEMI-UNIVERSAL METHOD FOR STKS
  • LOW ENZYME CONSUMPTION

Assay principle

Each HTRF KinEASE kit is based on the same assay format, and uses a universal biotinylated substrate, a phospho-specific Eu-cryptate-labeled monoclonal antibody, and SA-XL665. All three STK peptidic substrates are made of the same sequence for antibody detection, next to a variable sequence recognized by enzymes. The targeted residue for phosphorylation lies in between as part of both sequences for enzymatic activity (unphosphorylated) and antibody detection (phosphorylated). It has been shown that 3 different variable sequences could enable the study of most Serine/Threonine kinases.

Assay protocol

As shown here, all HTRF KinEASE assays work the same way and involve two steps:

Step 1: Kinase reaction The kinase is incubated in the presence or absence of compounds and the appropriate substrate. The supplemented enzymatic buffer is added in the kinase buffer for tyr kinases only. ATP is added to start the reaction.

Step 2: Detection Eu-cryptate and XL665 conjugates are added. The detection buffer contains EDTA to stop the enzymatic reaction.

HTRF KinEASE Assay principle
Click in the table below to view the list of enzymes, the kit which use is recommended, and download the technical datasheet including experimental setting and validation data. Non listed STKs can be assessed with the Discovery kit to find out which HTRF KinEASE STK kit may be used.
ABL1 (TK)ABL2 (TK)AKT1 (STK S3)AKT2 (STK S3)AKT3 (STK S3)
ALK (TK)AMPK a2/ß1/g1 (STK S1)AMPK a2/ß2/g1 (STK S1)Arg (TK)ARK5 (STK S3)
ASK1 (STK S3)AURKA (STK S2)AURKB (STK S2)Aurora A (STK S2)Aurora B (STK S2)
Aurora C (STK S3)AXL (TK)BLK (TK)BMX (TK)BRK (TK)
BrSK1 (STK S3)BrSK2 (STK S1)BTK (TK)c-Kit (TK)CAMK1 (STK S1)
CaMK1 a (STK S1)CaMK2 a (STK S1)CaMK2 ß (STK S1)CaMK2 d (STK S1)CaMK2 g (STK S1)
CAMK2B (STK S1)CAMK2D (STK S1)CAMK2G (STK S1)CaMK4 (STK S1)CDC42 BPA (STK S3)
CDC42 BPB (STK S3)CGK2 (STK S2)CHEK1 (STK S1)CHEK2 (STK S1)CHK1 (STK S1)
CHK2 (STK S1)CHUK (STK S3)CLK3 (STK S3)COT (STK S3)CSF1R (TK)
CSK (TK)DAPK1 (STK S1)DAPK2 (STK S1)DAPK3 (STK S1)DCAMKL2 (STK S1)
DDR2 (TK)DMPK (STK S3)DRAK1 (STK S1)DYRK2 (STK S3)EEF-2K (STK S3)
EGFR (TK)EPHA1 (TK)EPHA2 (TK)EPHA3 (TK)EPHA4 (TK)
EPHA5 (TK)EPHA7 (TK)EPHA8 (TK)EPHB1 (TK)EPHB2 (TK)
EPHB3 (TK)EPHB4 (TK)ERBB4 (TK)FAK (TK)FER (TK)
FES (TK)FGFR1 (TK)FGFR2 (TK)FGFR3 (TK)FGFR4 (TK)
FGR (TK)FLT1 (TK)FLT3 (TK)FLT4 (TK)FMS (TK)
Fps (TK)FRK (TK)FYN (TK)GPRK4 (STK S1)GRK4 (STK S1)
GRK5 (STK S3)GRK6 (STK S1)GSG2 (STK S1)GSK3 a (STK S3)Haspin (STK S1)
HCK (TK)HER4 (TK)HIPK2 (STK S3)HIPK3 (STK S3)IGF1R (TK)
IKBKB (STK S3)IKK a (STK S3)IKK ß (STK S3)INSR (TK)INSRR (TK)
Insulin R (TK)IRAK4 (STK S1)IRR (TK)ITK (TK)JAK1 (TK)
JAK2 (TK)JAK3 (TK)KDR (TK)KIT (TK)LATS1 (STK S1)
LCK (TK)LKB1 (STK S1)LOK (STK S3)Lyn (TK)LYNa (TK)
MAP3K8 (STK S3)MAPKAP-K1 a (STK S1)MAPKAP-K1 ß (STK S1)MAPKAP-K2 (STK S1)MAPKAP-K3 (STK S1)
MAPKAP-K5 (STK S1)MARK1 (STK S1)MARK2 (STK S2)MELK (STK S1)MER (TK)
MERTK (TK)MET (TK)MINK1 (STK S3)MKNK1 (STK S1)MKNK2 (STK S1)
MLCK (STK S1)MNK1 (STK S1)MNK2 (STK S1)MRCK a (STK S3)MRCK ß (STK S3)
MSK1 (STK S3)MSK2 (STK S3)MSSK1 (STK S3)MST1 (STK S3)MST1R (TK)
MST2 (STK S3)MSTIR (TK)MUSK (TK)MYLK (STK S1)NEK11 (STK S2)
NEK2 (STK S3)NEK3 (STK S3)NEK6 (STK S3)NEK7 (STK S3)NLK (STK S3)
NTRK1 (TK)NTRK2 (TK)NTRK3 (TK)p70S6K (STK S3)PAK2 (STK S2)
PAK3 (STK S2)PAK4 (STK S2)PAK5 (STK S2)PAK6 (STK S2)PAK7 (STK S2)
PAR-1B a (STK S2)PASK (STK S1)PDGFR a (TK)PDGFR ß (TK)PDGFRA (TK)
PDGFRB (TK)PHK g1 (STK S1)PHK g2 (STK S1)PIM1 (STK S3)PIM2 (STK S3)
PKAC a (STK S2)PKAC g (STK S3)PKB a (STK S3)PKB ß (STK S3)PKB g (STK S3)
PKC a (STK S1)PKC ß1 (STK S1)PKC ß2 (STK S1)PKC d (STK S1)PKC epsilon (STK S1)
PKC µ (STK S1)PKC theta (STK S1)PKC eta (STK S1)PKC gamma (STK S1)PKC iota (STK S1)
PKC zeta (STK S1)PKD2 (STK S1)PKG1 a (STK S2)PKG1 ß (STK S2)PKG2 (STK S1)
PKN2 (STK S1)PLK1 (STK S1)PLK3 (STK S3)PLK4 (STK S2)PRAK (STK S1)
PRK2 (STK S1)PRKA A2/B1/G1 (STK S1)PRKACA (STK S2)PRKACG (STK S3)PRKCA (STK S1)
PRKCB1 (STK S1)PRKCB2 (STK S1)PRKCD (STK S1)PRKCE (STK S1)PRKCG (STK S1)
PRKCH (STK S1)PRKCI (STK S1)PRKCQ (STK S1)PRKCZ (STK S1)PRKD2 (STK S1)
PRKG1 (STK S2)PRKG2 (STK S1)PRKX (STK S2)PTK2 (TK)PTK2B (TK)
PTK5 (TK)PTK6 (TK)PYK2 (TK)RET (TK)ROCK1 (STK S2)
ROCK2 (STK S2)ROK a (STK S2)RON (TK)ROS (TK)ROS1 (TK)
RPS6KA1 (STK S1)RPS6KA2 (STK S1)RPS6KA3 (STK S1)RPS6KA4 (STK S3)RPS6KA5 (STK S3)
RPS6KA6 (STK S2)RPS6KB1 (STK S3)Rse (TK)RSK1 (STK S1)RSK2 (STK S1)
RSK3 (STK S1)RSK4 (STK S2)SAD1 (STK S3)SGK1 (STK S3)SGK2 (STK S3)
SGK3 (STK S3)SGKL (STK S3)SIK (STK S1)smMLCK (STK S1)Snk (STK S3)
SRC (TK)STK22B (STK S1)STK22D (STK S1)STK23 (STK S3)STK3 (STK S3)
STK4 (STK S3)STK6 (STK S2)SYK (TK)TBK1 (STK S1)TEK (TK)
TIE2 (TK)TRKA (TK)TRKB (TK)TRKC (TK)TSSK1 (STK S1)
TSSK2 (STK S1)TYK2 (TK)TYR03 (TK)TYRO3 (TK)VEGFR1 (TK)
VEGFR2 (TK)VEGFR3 (TK)WNK2 (STK S3)WNK3 (STK S3)YES1 (TK)
ZAP70 (TK)ZIPK (STK S1)

Validated kinases

Over 190 Serine/Threonine and Tyrosine kinases have already been validated with the HTRF KinEASE kits. Out of those, 43 were found to be compatible with the S3 kit. The case of AKT1 Serine/Threonine kinase is illustrated below with the enzyme titration and time course (on the left), and the inhibition by staurosporine (on the right).
AKT1 kinase titration and time course
AKT1 kinase inhibition by staurosporine
AKT1, PKB-alpha validated with HTRF KinEASE

Enzyme validation - Technical Notes

AKT2, PKB-beta validated with HTRF KinEASE

Enzyme validation - Technical Notes

AKT3, PKB-gamma validated with HTRF KinEASE

Enzyme validation - Technical Notes

ASK1 validated with HTRF KinEASE

Enzyme validation - Technical Notes

DYRK2 validated with HTRF KinEASE

Enzyme validation - Technical Notes

IKK-alpha, CHUK validated with HTRF KinEASE

Enzyme validation - Technical Notes

IKK-beta, IKBKB validated with HTRF KinEASE

Enzyme validation - Technical Notes

MSK2, RPS6KA4 validated with HTRF KinEASE

Enzyme validation - Technical Notes

NEK2 validated with HTRF KinEASE

Enzyme validation - Technical Notes

p70S6K, RPS6KB1 validated with HTRF KinEASE

Enzyme validation - Technical Notes

PIM1 validated with HTRF KinEASE

Enzyme validation - Technical Notes

PIM2 validated with HTRF KinEASE

Enzyme validation - Technical Notes

PKAC-gamma, PRKACG validated with HTRF KinEASE

Enzyme validation - Technical Notes

SGK1 validated with HTRF KinEASE

Enzyme validation - Technical Notes

SGK2 validated with HTRF KinEASE

Enzyme validation - Technical Notes

SGK3, SGKL validated with HTRF KinEASE

Enzyme validation - Technical Notes

HTRF KinEASE

Universal platform to address Ser/Thr & Tyr kinases - Application Notes

Open R&D: Sanofi Access Platform

In collaboration with Sanofi - Scientific Presentations

Progress towards a generic intracellular kinase assay

In collaboration with Genomics institute of the Novartis Research Foundation - Scientific Presentations

KinEASE, a universal expanded platform to adress Ser/Thr & Tyr kinases

Measuring kinase activity under any conditions - Application Notes

Exploration is easier with a trusted partner

HTRF KinEASE Tyr and Ser/Thr kits - Flyers

Cisbio KinEASE

Validated kinases and assay conditions - Flyers

Product Insert KinEASE STK S3 Kit / 62ST3PEB-62ST3PEC-62ST3PEJ

62ST3PEB-62ST3PEC-62ST3PEJ - Product Insert

Cisbio Product Catalog 2019

All your HTRF assays in one document! - Catalog

A guide to Homogeneous Time Resolved Fluorescence

General principles of HTRF - Guides

The essential white paper to expand your knowledge on kinases

Learn about cutting edge kinase research in this free white paper - Guides

How HTRF compares to Western Blot and ELISA

Get the brochure about technology comparison. - Brochures

Multiple therapeutic areas adressed with HTRF KinEase assays

Discover how peer researchers challenge kinase investigations with KinEase assays - Application Notes

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