DISCOVER 
MOLECULAR
INTERACTIONS

Kinetics – Affinity – Avidity
Conformational Changes
Thermodynamics

heliX®

switchSENSE® Technology
Molecular Interaction Analysis
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  • Binding Kinetics
  • Binding Affinity
  • Protein Diameter
  • Conformational Change
  • Nuclease & Polymerase Activity
  • Bispecific Binders & Avidity
  • Melting & Thermodynamics
  • Multimers & Aggregation

Application Areas

heliX®
DISCOVER MOLECULAR INTERACTIONS

The dynamicBIOSENSORS team is excited to announce the launch of the heliX® line of biosensor instruments!

heliX® pushes the boundaries of what has been possible in biosensing to help you do more:

  • Analysis of binding kinetics and molecular conformations in one measurement.
  • Screening of conformational changes de novo by real-time conformation referencing.
  • Resolving the fastest kinetics with confidence using advanced microfluidics and 10 ms data collection, and taking advantage of improved signal stability for the characterization of high-affinity binders in long dissociation measurements.
  • Two-color single-photon counting fluorescence detection for femto-molar sensitivity and the in-depth analysis of bispecific binders.
  • Effortless sensor functionalization and advanced ligand density control with the new Adapter Chip.

heliX® is based on a modular technical design and features an automatic chip-loader in conjunction with a 384 well plate compatible autosampler, allowing you to scale-up throughput to thousands of samples per day.

In Focus

Paper in PNAS

CMT disease severity correlates with mutation-induced open conformation of histidyl-tRNA synthetase, not aminoacylation loss, in patient cells

09 September 2019

In the recent issue of PNAS, researchers from The Scripps Research Institute present their latest groundbreaking findings on the neurodegenerative Charcot-Marie-Tooth (CMT) disease. The study demonstrates that the severity of the CMT disease is closely linked to distinct mutations in the histidyl-tRNA synthetase protein.
Using the switchSENSE® technology, the Scripps researchers could measure the variable mutation-induced conformational expansion of the mutated synthetases in comparison to the wild-type protein. Small-angle X-ray scattering (SAXS) and hydrogen/deuterium (HDX) analyses confirmed the switchSENSE® results. These structural and size measurements enabled the ranking of the different mutations, stating a strong correlation with the severity of the CMT disease.

Paper in Bioconjugate Chemistry

Triazine-Modified 7-Deaza-2′-deoxyadenosines: Better Suited for Bioorthogonal Labeling of DNA by PCR than 2′-Deoxyuridines

22 May 2019

Researchers from the Karlsruhe Institute of Technology attached the bioorthogonally reactive 6-Ethynyl-1,2,4-triazine grou to the 7-position of 7-deaza-2-deoxyadenosine triphosphate and to the 5-position of 2-deoxyuridine triphosphate for subsequent labelling. Both, Primer extension experiments (PEX) and PCR amplification, show that 6-ethynyl-1,2,4-triazine is much better tolerated by the DNA polymerase when attached to the 7-position of 7-deaza-2-deoxyadenosine in comparison to the attachment at the 5-position of 2-deoxyuridine. Real-time kinetic observation of DNA polymerase activity during primer extension using switchSENSE® clearly shows this behavior and imply that bioorthogonal labeling strategies are better suited for 7-deaza-2-adenosines than conventional and available 2-deoxyuridines.

Dr. Michael Schraeml, Head Protein and Enzyme Technologies
ROCHE DIAGNOSTICS GMBH

Products for High-Performance Analysis

Biochips

switchSENSE® experiments are performed on reusable multi-electrode, multi-channels biochips.

DRX Instruments

Fully automated switchSENSE® instruments are 96-well plates compatible and manufactured in Germany.

Consumables

Including coupling kits, starter packs, training & OQ kits, as well as buffers, solutions and other consumables.

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