Generic peptide substrate for use in TR-FRET biochemical kinase assays. Refer to Selector Guide for validated kinases. Synthetic peptide containing residues surrounding Thr37 and Thr46 of human eukaryotic translation initiation factor 4E-binding protein 1; phosphorylation sites: Thr37 and Thr46. The ULight-eIF4E-binding protein 1 peptide can be phosphorylated at Thr37/46 by mTOR and many kinases. Phosphorylation motif: STTPGGTLFSTTPG
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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:
For ULight substrates:
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.
|Detection Method||Time-Resolved Fluorescence (TRF), TR-FRET|
|Experimental Type||In vitro|
|Product Brand Name||LANCE Ultra|
|Shipping Condition||Dry Ice|
|Unit Size||0.5 nmol|
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.
LANCE® Ultra TR-FRET reagents comprise the widest portfolio of validated kinase assay offerings available for rapid, sensitive ,and robust screening of purified kinase targets in a biochemical format.
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.
Over these last few decades there has been a growing trend in drug discovery to use cellular systems and functional assays, in addition to biochemical assays, for the characterization of new potential therapeutics. The ability to study the interaction between a candidate drug and its target within the context of a whole, intact cell allows for more physiologically relevant data to be obtained. However, such assays are more complex than traditional biochemical assays as such facts as membrane permeability, cellular metabolism, cell variability, additional binding partners, and signal transduction must be considered.
To help you navigate the complexities in designing cell-based assays, we have gathered insights collected over the years and compiled them to provide you with elements to consider when setting up your cell-based assays. After all, any assay, biochemical or cell-based, is only as good as its design.