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LANCE Ultra ULight-Glycogen Synthase (Ser641/pSer657) Peptide, 5 nmoles

Glycogen synthase peptide (Sequence: PASVPPSPSLSRHSSPHQ(pS)ED) labeled with ULight™ dye. Synthetic peptide containing residues surrounding Ser641 and Ser657 of human Muscle Glycogen Synthase. This peptide is pre-phosphorylated on Ser657. Target phosphorylation site: Ser641. This peptide substrate can be phosphorylated by a variety of kinases including GSK3α and GSK3β.

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0.5 nmol
304.00 GBP
5 nmol
531.00 GBP
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Detail Information

LANCE Ultra TR-FRET technology provides a two-component kinase assay that combines direct labeling of the kinase substrate with ULight™, an innovative emission dye for optimum binding efficiency, reducing steps and assay prep time. Validated for over 310 kinases, we provide data transparency by supplying:

  • Test conditions: Rapid assay setup to move straight into optimized assay performance

  • S:B data: Confidence in proven performance of the kinase on specific substrates; no guessing

  • Phospho-motifs: Substrate sequences are provided

  • Assay options: Multiple substrates are tested so you can select the best peptide sequence and S:B for your kinase

For ULight substrates:

  • 0.5 nmoles = 1,000 assay points

  • 5 nmoles = 10,000 assay points

In LANCE Ultra kinase assays, the binding of a Eu-labeled anti-phosphosubstrate antibody to the phosphorylated ULight-labeled substrate brings donor and acceptor molecules into close proximity. After irradiation of the kinase reaction at 320 or 340 nm, the energy from the Eu donor is transferred to the ULight acceptor dye, which in turn generates light at 665 nm. The intensity of the light emission is proportional to the level of ULight-substrate phosphorylation.


Automation Compatible Yes
Detection Method Time-Resolved Fluorescence (TRF), TR-FRET
Experimental Type In vitro
Fluorophore ULight
Molecular Modification Phosphorylation
Product Brand Name LANCE Ultra
Shipping Condition Dry Ice
Unit Size 5 nmol
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Application Note

Comparison of LANCE Ultra TR-FRET to PerkinElmer's Classical LANCE TR-FRET Platform for Kinase Applications

Protein kinases play a major role in normal cellular functions such as cell proliferation, angiogenesis, and cell adhesion. Dysregulation of kinase activity has been shown to be associated with several human diseases including cancer, diabetes and morphological disorders. This makes kinases crucial targets for the discovery and development of new drugs.

PDF 805 KB
Improved Stability of the LANCE Ultra Signal in Kinase Assays

LANCE® Ultra is a high through putscreening (HTS) technology platform optimized for homogeneous time-resolved fluorescence resonance energy transfer (TRFRET) kinase assays. The LANCEUltra donor dye is a Europium(Eu) chelate, and the acceptor dye is a proprietary small-molecular weight molecule called ULight™, a fluorescent dye with a red-shifted light emission.

PDF 206 KB


Technical Note

Technical note: GSK3ß Kinase Assay

LANCE Ultra time-resolved fluorescence resonance energy transfer (TR-FRET) assays use a proprietary europium chelate donor dye with ULight, an innovative small molecular weight acceptor dye with a red-shifted fluorescent emission.

PDF 1022 KB