OneAngstrom – Page 620

Avoid Repeating Simulations by Recording Atom Paths in SAMSON

When working on molecular simulations or structural rearrangements, animation workflows can become repetitive and time-consuming. A common challenge for molecular modelers is ensuring that once they achieve the right animation involving atom movements—for example, docking, simulated dynamics, or manual manipulation—they…

Making Molecules Disappear: A Visual Trick for Clearer Presentations

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One of the constant challenges faced by molecular modelers is simplifying complex molecular scenes for presentations or animations. Whether it’s to highlight a reaction site, declutter overlapping strands, or direct attention to a specific structure, controlling visibility is a key…

A Practical Guide to Aligning Molecular Structures in SAMSON

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Aligning molecular structures may sound simple, but anyone working at the atomic level knows that precision matters—whether you’re comparing docking poses, preparing figures, or building assemblies. If you’ve ever wrestled with rotating, translating, and centering molecules manually, this post is…

From 2D to 3D: Instantly Visualize Analogs with the SMILES Manager

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When exploring new molecules in drug discovery or materials science, seeing the molecule in 3D isn’t a luxury—it’s a necessity. However, for many molecular modelers, converting a generated 2D molecular structure (e.g., from a SMILES code) into its 3D counterpart…

Creating Custom Index Groups for COM Pulling in GROMACS Wizard

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When setting up a molecular dynamics simulation involving pulling or restraining specific molecular parts, having precise control over which atoms belong to which group is crucial. This is especially important in center-of-mass (COM) pulling simulations where specifying exactly which atoms…

Filtering Molecular Conformations by Atom Count in SAMSON

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When analyzing molecular systems, it’s often useful—if not essential—to filter or select specific molecular conformations based on the number of atoms they contain. This might be relevant when comparing various snapshots during a simulation, isolating smaller or larger fragments, or…

Switching Gears: Navigating the Editor System in SAMSON

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Molecular modelers often juggle multiple tasks: building structures, transforming geometries, applying selection tools, and more. Every operation requires precision, and switching gears between different tools should be seamless. That’s where the editor system in SAMSON comes in. Understanding how editors…

A simple technique for visualizing atomic trajectories in your animation presentations

OneAngstrom

Have you ever needed to visualize how atoms move over time during your molecular animation? Whether you’re showcasing a docking process, simulating molecular dynamics, or illustrating a mechanism of action, a common challenge is to record and later export clear…

Refining Protein Backbone Conformations Using Dihedral Angle Editing

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Validating and refining protein structures often involves ensuring that backbone conformations fall within energetically favorable regions. When dihedral angles (φ and ψ) are off, a residue may adopt a strained conformation that can compromise structural stability or the results of…

Which Symmetry Group Should You Trust When Modeling Large Assemblies?

OneAngstrom

When working with large biological assemblies—such as viral capsids, multimeric protein complexes, or nanostructures—symmetry can be both a friend and a challenge. Detecting symmetry reduces computational load and helps identify biologically meaningful patterns. But what happens when multiple symmetry groups…