Method for the determination of intra- and intermolecular interactions in aqueous solution

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention introduces a novel computational method for accurately determining intra- and intermolecular interactions between molecules in aqueous solutions. The approach uniquely combines the calculation of atomic dehydration energies (how atoms lose water around them), the strength of hydrogen bonds in a vacuum, and the free energy changes of interacting molecules. By factoring in detailed water network properties—such as the degree of hydrogen bond satisfaction and the unique behavior of water around different chemical groups—the method allows for more precise predictions of how and how well two molecules (like a drug and its protein target) bind together in water. The methodology addresses shortcomings of previous models by bringing theory into closer alignment with experiment, particularly in the context of molecular recognition and affinity.

Use CasesContent extracted from patent full text and abstract with AI.

• Virtual screening of compound libraries to identify potential drugs or agrochemicals that bind with high affinity to biological targets.
• Structure-based drug design, allowing chemists to rationally design molecules predicted to bind tightly to proteins or nucleic acids.
• Prediction of binding affinities between proteins, nucleic acids, or other biomolecules in research and industrial settings.
• Analysis and visualization of the molecular interface in protein-ligand, protein-protein, or protein-nucleic acid complexes to identify hot spots for binding or specificity.
• Understanding and predicting the impact of single atom modifications on molecular binding affinity for lead optimization in drug discovery.
• Studying temperature or solvent effects on biomolecular interactions, which is important for biophysics and protein engineering.

BenefitsContent extracted from patent full text and abstract with AI.

• Provides quantitatively accurate predictions of molecular binding in aqueous environments, aligning better with experimental results than previous models.
• Enables rational, efficient screening and design of drug candidates, reducing the need for costly and time-consuming experimental assays.
• Improves understanding of the fundamental roles of water structure and dehydration in molecular recognition, helping to explain complex phenomena such as specificity or self-assembly.
• Allows detailed, atom-level analysis of stabilizing and destabilizing contributions to molecular interfaces, aiding in the optimization of ligand binding.
• Applicable to a wide range of targets including proteins, nucleic acids, and small molecules, making it versatile for different fields (pharmaceuticals, agrochemicals, biotechnology).
• Supports temperature- and solvent-dependent predictions, useful for studying biophysical changes or designing molecules for different conditions.

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Patent Abstract

The present invention relates to the determination of intra- or intermolecular interaction between molecules in aqueous solution, said method comprising the steps of: (a) determining the dehydration (”G dehydration ) of all atoms in the intermolecular interface, (b) adding the vacuum hydrogen bond energy (µ H -bond), and (c) further adding the change in the free enthalpy of the interacting partners upon their interaction. The obtained results can be used for the prediction if and to what extent two molecules of various origin fit to each other.