LANCE® (Lanthanide Chelate Excite) TR-FRET technology combines the benefits of Time Resolved Fluorescence (TRF) with those of Förster Resonance Energy Transfer (FRET) in a simple, highly-sensitive, and highly reproducible assay platform for detection, quantitation and screening in microplate format.
The use of long-lifetime fluorescent lanthanide chelates, rather than other fluorophores, allows for a delay in measurement between excitation and emissions, which occur simultaneously in standard fluorometric assays. Furthermore, FRET detection utilizes energy donor and energy acceptor fluorophore labels in solution to create a no-wash detection assay. By combining the benefits of TRF and FRET, LANCE TR-FRET offers a multitude of benefits over standard fluorometric detection:
Homogeneous assay format (no wash steps, no separation steps)
Reduced background leading to better S:B
Large Stoke’s shift
Wider dynamic range
Extended signal stability
Increased sensitivity. Lower detection limits of 10 pg/mL compared to 100 pg/mL for standard fluorometric detection
Faster time to results
From biomarker detection assays, to cAMP/GPCR studies, to kinase and epigenetic assays, our LANCE® and LANCE Ultra TR-FRET assays are sure to save you time and hassle.
Biochemical assays remain an important tool for the drug discovery process. Whether you need a binding assay, kinase assay, other enzymatic assay, or would like to build your own assay utilizing our Toolbox reagents, LANCE has a variety of biochemical assays available.
Breakthrough discoveries in cell signaling and cell signal transduction are coming from laboratories that maximize high-quality results while minimizing hassles. And LANCE helps you do just that. With a wide selection of phospho- and total protein detection kits available, we are here to help you better understand the intracellular pathways of phosphorylated proteins.
Are you working on a novel target? If you are looking to develop your own assay PerkinElmer custom labeling services can label your assay components with LANCE donor and acceptor molecules. Or maybe you are you short on time and need an assay developed quickly? Custom LANCE assay development allows our technical experts to develop a custom assay just for your research needs. If you are interested in having your biomolecule custom-labeled or in developing a custom assay, please contact our OnPoint custom team.
When it comes to developing assays or troubleshooting issues, always know you’re never on your own. With over 30 years’ experience in defining, synthesizing and optimizing chelate and chelate-based bioanalytical assays PerkinElmer is here to help you succeed. Whether you are looking to speak to someone directly or find the answers yourself we have the resources you need.
FAS: Our global team of Field Application Scientists are hands-on subject matter experts in assay development. They are available to assist in both assay development and troubleshooting.
Application Support Knowledgebase (ASK): Need help at 1am? We’ve got it covered. The Application Support Knowledgebase (ASK) contains detailed information on assay development, protocols, tips, FAQs, citations, troubleshooting and more. Accessible 24 hours a day, 7 days a week on our website. http://www.perkinelmer.com/LANCE/ASK.
Human MMP-12 standard, lyophilized, for use in running standard curves in LANCE TR-FRET assays. This standard is already provided in the LANCE Ultra MMP-12 TR-FRET Detection Kit, but can be ordered separately.
Europium labeling chelate for creating your own Europium-labeled biomolecules for use in LANCE TR-FRET assays. The iodoacetamido-activated chelate reacts primarily with free sulfhydryl groups, such as cysteines.
LANCE Ultra phospho-STAT5 (Tyr694/699) kits are designed for the detection of STAT5 (phosphorylated at Y694/Y699) in cell lysates using a simple, homogeneous LANCE Ultra assay (no wash steps). This assay is compatible with both adherent and suspension cells.
Generic peptide substrate for use in TR-FRET biochemical kinase assays. Refer to Selector Guide for validated kinases. Synthetic peptide containing residues surrounding Ser235 and Ser236 of human 40S ribosomal protein S6; this peptide is pre-phosphorylated on Ser235; phosphorylation site: Ser236. This peptide is phosphorylated at Ser236 efficiently by kinases from the RSK family. Phosphorylation motif: RRL(pS)SLRA
LANCE Ultra phospho-eIF2A (Ser51) kits are designed for the detection of eIF2A (phosphorylated at S51) in cell lysates using a simple, homogeneous LANCE Ultra assay (no wash steps). This assay is compatible with both adherent and suspension cells.