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Fragment Based Drug Discovery
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Fragment-based drug discovery (FBDD) has emerged as a powerful and innovative approach in the field of drug development. Unlike traditional methods that involve screening large, complex compounds, FBDD focuses on smaller molecular fragments, typically ranging from 100 to 250 Daltons in size. These fragments serve as starting points for drug design and are systematically assembled to create larger, more complex molecules with enhanced binding affinity and specificity for the target protein. By utilising smaller fragments, FBDD allows for more efficient exploration of chemical space, enabling researchers to identify key interactions between fragments and target proteins. At Concept Life Sciences, we successfully applied our FBDD screening services to our clients’ drug discovery projects across multiple biological targets ranging from well characterised bromodomains to complex protein-protein interactions targets.
Biophysical fragment collection
Fragment-based drug discovery (FBDD) has emerged as a powerful and innovative approach in the field of drug development. Unlike traditional methods that involve screening large, complex compounds, FBDD focuses on smaller molecular fragments, typically ranging from 100 to 250 Daltons in size. These fragments serve as starting points for drug design and are systematically assembled to create larger, more complex molecules with enhanced binding affinity and specificity for the target protein. By utilising smaller fragments, FBDD allows for more efficient exploration of chemical space, enabling researchers to identify key interactions between fragments and target proteins. At Concept Life Sciences, we successfully applied our FBDD screening services to our clients’ drug discovery projects across multiple biological targets ranging from well characterised bromodomains to complex protein-protein interactions targets.
A bespoke biophysical screening platform
Our team of biologists has access to and expertise in state-of-the-art instrumentation for biophysical screening. Our bespoke fragment screening workflow provides means to rapidly select and grow the best fragments:
- First pass screen: Surface Plasmon Resonance (Biacore 8K) or Grating Coupled Interferometry (GCI) waveRAPID® technology to identify primary hits
- Deselection screen: SPR or GCI waveRAPID® using either denatured protein, a control protein or counter-target
- Confirmation of affinity and determination of binding kinetics: SPR-or GCI-driven multi-cycle kinetics
- Orthogonal confirmation of affinity: Differential Scanning Fluorimetry (DSF), MicroScale Thermophoresis (MST) or Isothermal Titration Calorimetry (ITC)
- Determination of binding topologies: Ligand-observed and protein-observed NMR, X-ray crystallography, CryoEM
Accelerating the fragment-to-lead process
Our team of chemistry, biology and ADMET experts deploy a range of cutting-edge technologies to rapidly progress the most promising fragment hits into high-quality leads including:
- Sparse Array design: rapid exploration of the chemical space around each fragment hit
- Computational modelling: tease out fragment growth and merging opportunities
- Comprehensive biophysics: monitor improvements in affinities, binding kinetics, thermodynamics and evolution in binding topologies
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