Generate paths between two protein conformations within a few seconds thanks to ARAP interpolation.

Dock thousands of ligands into proteins and rank them with this extended version of AutoDock Vina.

Prepare proteins in a batch: remove alt. locations, water, ligands, ions, add hydrogens.

Compute low-energy conformers of small molecules.

Perform covalent and non-covalent protein-ligand docking with the FITTED Suite by Molecular Forecaster

Build glycans using a library of monosaccharides

Perform interactive simulations with GROMACS force fields.

Prepare, minimize, equilibrate, and simulate systems using GROMACS on your computer or in the cloud.

Perform protein-protein docking.

Find and visualize hydrogen bonds.

Simulate molecular systems using this generalized, Interactive-Modeling version of the Universal Force Field capable of automatic bond creation and br...

Display Ramachandran diagram of selected residues. Move a residue on the plot and see the effect it has on the protein.

Predict mechanisms of toxic action of molecules.

Find ligand unbinding pathways from a protein within minutes.

Create coarse-grained models for the MARTINI force field.

Importer for the macromolecular transmission format (MMTF) files (*.mmtf).

Construct systems by filling a box with molecules.

Compute structures of protein-ligand complexes using NMR data.

Compute nonlinear normal modes that open and close binding pockets of proteins.

Compute the nonlinear normal modes of a molecular system (protein, RNA, DNA) very quickly using the NOLB algorithm developed by Alexandre Hoffmann and...

Importer for the PDBx/mmCIF file format.

Rapidly compute small-angle X-ray scattering profiles.

Align multiple sequences and structures of proteins.

Find protein conformational transition paths within minutes.

Fetch structures from the RCSB Protein Data Bank and the AlphaFold Protein Structure Database.

Predict protein structures from sequences using AlphaFold, ESMFold, OpenFold and NVIDIA BioNeMo services.

Analyze protein-ligand interactions

Modify an amino acid residue into its rotamer or mutate it into an amino acid residue of a different type.

Your next-generation modeling assistant.

Import thousands of SMILES codes. Filter them using custom patterns. Modify them and generate their corresponding 2D image. Add them to the SAMSON Doc...

Validate biological structures and prepare them for further calculations.

Detect axes of cyclic, dihedral and cubic symmetries in protein complexes.

Interactively generate symmetry mates of a protein based on the crystallographic information from a pdb file.

Predict protein structures from sequences using AlphaFold, ESMFold, OpenFold and NVIDIA BioNeMo services.

Your next-generation modeling assistant.

Compute the bond angle distribution of the selected atoms.

Visualize the angle, bond, and projected bond distortions of a molecular or crystalic structure.

Perform interactive simulations of carbon nanotubes, graphene and hydrocarbon systems. Build complex geometries thanks to this reactive force field.

Compute low-energy conformers of small molecules.

Generate crystal models in a few clicks. Describe unit cells, import CIF files, model defects and impurities. Cut crystals.

Build a graphene model from a TEM image

Create a graphene sheet in one click.

Simulate molecular systems using this generalized, Interactive-Modeling version of the Universal Force Field capable of automatic bond creation and br...

Construct systems by filling a box with molecules.

Place molecules on a surface

Create a carbon nanotube (CNT) in just two clicks.

Use a parallel implementation of the nudged elastic band (NEB) method to find saddle points and minimum-energy paths.

Construct polymers out of various building blocks (monomers and their sequences).

Your next-generation modeling assistant.

Construct transition metal dichalcogenide monolayers from experimental images.

Perform large-scale deformations of materials and biomolecules interactively with this powerful editor.

Simulate with an adaptive version of the Lennard-Jones potential.

Perform interactive simulations of carbon nanotubes, graphene and hydrocarbon systems. Build complex geometries thanks to this reactive force field.

Compute low-energy conformers of small molecules.

Optimize molecular structures with FIRE.

Prepare, minimize, equilibrate, and simulate systems using GROMACS on your computer or in the cloud.

Predict mechanisms of toxic action of molecules.

The Lennard-Jones interaction model.

Use a parallel implementation of the nudged elastic band (NEB) method to find saddle points and minimum-energy paths.

Import thousands of SMILES codes. Filter them using custom patterns. Modify them and generate their corresponding 2D image. Add them to the SAMSON Doc...

A collection of state updaters used for interactive minimization simulation.

Simulate molecular systems using the Universal Force Field (UFF) with automatic structure perception.

Perform interactive simulations of carbon nanotubes, graphene and hydrocarbon systems. Build complex geometries thanks to this reactive force field.

Build a graphene model from a TEM image

Create a graphene sheet in one click.

Construct systems by filling a box with molecules.

Place molecules on a surface

Create a carbon nanotube (CNT) in just two clicks.

Construct transition metal dichalcogenide monolayers from experimental images.

A game where you build optimal assemblies of interacting atoms.

A game where you search and build molecules.

Preview and access the User guide pages directly from SAMSON.

Learn molecular design with SAMSON thanks to these interactive, step-by-step tutorials.

Your next-generation modeling assistant.

Visualize, build and simulate in virtual reality.

Rapidly create advanced molecular animations with these thirty-two animation templates.

Compute the bond angle distribution of the selected atoms.

Visualize the angle, bond, and projected bond distortions of a molecular or crystalic structure.

Import and export 3D models in glTF format.

Visualize glycans with the 3D Symbol Nomenclature for Glycans (SNFG) representation.

Load images as visual models or meshes to include them in visualizations and presentations, or to help you construct structures.

Make studio-quality visuals and animations with Cycles, the Blender renderer.

Export animations and presentations as movies in GIF, MP4, and WEBM formats.

Visualize paths of a set of atoms.

Visualize MOFs and crystals with Polyhedrons

Import Stereolithography (.stl) binary and ASCII files to display them and generate carbon atoms based on vertices positions.

Visualize, build and simulate in virtual reality.

Visualize molecular structures using a collection of representations and color schemes.

A collection of visual presets to rapidly create publication-quality images.

A collection of various assets that can be used to build molecular systems.

Select atoms based on expressions with NSL-like variables, standard mathematical and logical operations.

A collection of commands that constitute menus and allow you to perform tasks.

Generate crystal models in a few clicks. Describe unit cells, import CIF files, model defects and impurities. Cut crystals.

A collection of editors to build, modify, move, measure, and label molecular systems.

Optimize molecular structures with FIRE.

Create a graphene sheet in one click.

Simulate molecular systems using this generalized, Interactive-Modeling version of the Universal Force Field capable of automatic bond creation and br...

Create coarse-grained models for the MARTINI force field.

Construct systems by filling a box with molecules.

Place molecules on a surface

Create a carbon nanotube (CNT) in just two clicks.

Construct polymers out of various building blocks (monomers and their sequences).

Modify an amino acid residue into its rotamer or mutate it into an amino acid residue of a different type.

Your next-generation modeling assistant.

Basic geometry and concentration statistics for the selected atoms.

A collection of selectors used across various commands, visual presets, and extensions.

Validate biological structures and prepare them for further calculations.

Perform large-scale deformations of materials and biomolecules interactively with this powerful editor.

A collection of workspaces that customize the SAMSON interface.

Develop using the Monaco Editor.

View the exposed functionality of SAMSON Extensions

Want to check logs and outputs? This extension redirects C/C++ standard streams and Qt messages.

Script SAMSON using Python. Model and simulate from scripts. Pipeline calculations. Integrate Python packages for machine learning and more.

Your next-generation modeling assistant.

Want to create a SAMSON Extension ? Generate source code from a template in a few clicks and start developing.

Package and validate a SAMSON Extension you developed to publish it on SAMSON Connect.

Modify atoms' parameters (position, selection, etc) using a simple scripting language, NSL-like variables, mathematical and logical operations.

Generate UUIDs directly from SAMSON in one click.

Export atoms along paths in PDB files.

A collection of exporters for the GRO, MOL2, PDB, and XYZ formats.

Import and export 3D models in glTF format.

Importer for gzipped (.gz) files of already supported formats (e.g., .pdb.gz).

Load images as visual models or meshes to include them in visualizations and presentations, or to help you construct structures.

A collection of importers for the CML, GRO, MOL, MOL2, PDB, SD, SDF, and XYZ formats

Create coarse-grained models for the MARTINI force field.

Importer for the macromolecular transmission format (MMTF) files (*.mmtf).

Export animations and presentations as movies in GIF, MP4, and WEBM formats.

Export molecular structures, visual models and surfaces to OBJ - including their colors - to import them in 3D animation software, or even PowerPoint™...

Import OBJ files into SAMSON.

Create a trajectory (path) based on a series of PDB files.

Importer for the PDBx/mmCIF file format.

Import Stereolithography (.stl) binary and ASCII files to display them and generate carbon atoms based on vertices positions.

Import and export molecular dynamics trajectories in various formats.

Fix problems in PDB files in preparation for simulating them: remove alt.locations, add missing resides and atoms, add solvent and membrane, etc.