Classical force fields can overlook the subtle forces that shape binding, selectivity, and molecular behavior.

These include electrostatics, charge transfer, and dispersion interactions. They become especially important in complex systems such as PPIs, ADCs, PROTACs, and RNA binders. The Fragment Molecular Orbital (FMO) method provides residue‑level insight into these effects. It explains why compounds behave a certain way and how small changes at the atomic level influence the overall binding profile. 

Sygnature’s FMO‑SP builds on this capability. It combines high throughput FMO calculations with automated structure setup, streamlined fragmentation, and optimization tools. This allows project teams to explore binding energetics quickly and consistently across hit series or design hypotheses. Complex quantum information is converted into intuitive visual outputs, including heatmaps, 3D interaction maps, and electrostatic complementarity surfaces. These give medicinal chemists and computational scientists a clearer picture of the forces shaping activity. 

Key Strengths

Residue‑level interaction insight

Clear decomposition of binding forces

Intuitive visual outputs for rapid interpretation

Dynamic persistence analysis through NES or MD

Electrostatic complementarity for early safety insight 

High throughput quantum workflows at scale 

Why Choose Sygnature for FMO-SP

The FMO‑Sygnature Platform has been applied prospectively across a broad range of target classes. It has been used to explain SAR and potency trends in GLP‑1R agonists such as Danuglipron. It has helped identify binding drivers in GPCR–peptide systems including GLP‑1R and Semaglutide. It has provided clarity on the electrostatic contributions to hERG liability in compounds like Pimozide. It has mapped cooperativity within PROTAC systems such as MZ1 and quantified ternary stabilization in molecular glue complexes including CRBN, CC‑885, and GSPT1. 

These results reflect the strength of our multidisciplinary teams. Our computational chemists, medicinal chemists, and structural biologists work together to translate quantum findings into practical design recommendations. Their combined expertise accelerates DMTA cycles, reduces synthesis burden, and improves the success rate of hit‑to‑lead and lead optimization work. The mechanistic clarity generated through FMO‑SP supports regulatory documentation and IP strategies. We also remain closely aligned with the FMODD consortium, which helps ensure our methodologies reflect current best practice. 

Rapid creation of ideas using generative AI (GenAI) with Iktos Makya
Leading generative artificial intelligence (GenAI) algorithms for de novo design are being used routinely within our medicinal chemistry programmes to enable rapid idea generation to address project objectives. We have successfully deployed Makya, a leading software platform for de novo molecular design from Iktos onto projects to address our client’s needs. These tools use advanced deep learning models to explore vast chemical spaces for new structures that meet multiple design criteria, such as…
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Enhancing Molecular Design Services: Sygnature Discovery Adopts OpenEye’s Orion™ Platform
Enhancing Molecular Design Services: Sygnature Discovery Adopts OpenEye’s Orion™ Platform
Sygnature Accelerates Customers’ Drug Discovery Timelines with Improved Hit Identification, Lead Optimisation Capabilities Sygnature has…
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