Uncategorized – Page 361

Exporting Molecular Models in SAMSON: A Quick Guide with Useful Links

Sharing and storing molecular models outside the design environment is an essential part of a molecular modeler’s daily work. Whether you’re preparing data for a publication, collaborating with colleagues, or setting up simulations in another tool, exporting your models in…

Quickly Filter Molecules by Atom Counts in SAMSON

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Working with large molecular systems often means searching through numerous molecules to identify the right structures for your simulations or analysis. A common task for molecular modelers is filtering molecules by the number of specific atoms they contain—for instance, selecting…

Preserving Essential Waters: How to Delete Only Unwanted Crystal Waters in Molecular Simulations

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When preparing molecular systems for simulation, removing water molecules is a common step. However, not all waters are useless. Some are tightly bound or located in active sites and play critical roles in structure and function. Deleting all crystal waters…

SAMSON Doesn’t Require Admin Rights: Why That Matters for Molecular Modelers

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For many molecular modelers working in university labs, research facilities, or strict IT environments, installing new software can become a frustrating experience. Why? Because installing software often requires administrative privileges, meaning researchers have to wait for IT approval or assistance—a…

Running Molecular Dynamics on Multiple Protein Systems with Consistent Parameters

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Running molecular dynamics (MD) simulations for a variety of protein systems often comes with a familiar headache: reproducibility and consistency across runs. 🧠 Whether you’re screening mutations, comparing homologs, or simply evaluating binding dynamics across different proteins, ensuring that all…

Confused About Input Files for Production MD? Here’s a Practical Guide

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One of the recurring confusions among molecular modelers using GROMACS is selecting the proper input files for a production molecular dynamics (MD) simulation. This seemingly simple step can quickly become a bottleneck—especially when switching between equilibration and production phases, or…

Need to Track Atomic Movement? Try Visualizing the Center-of-Mass Pathline

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When working with molecular simulations, seeing is understanding. But if you’re analyzing ligand unbinding events, conformational changes, or diffusion mechanisms, it can be surprisingly hard to visualize how a group of atoms actually moves through space over time. Often, researchers…

Making Molecular Visuals Manageable: Using Visibility Attributes in SAMSON

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Working with complex molecular systems often means dealing with large, tangled visual representations. When atoms, residues, and molecular surfaces overlap in your viewport, even the most beautiful structures become hard to interpret. This is a common problem molecular modelers face:…

Avoiding Model Instability: How to Check if Your Energy Minimization Actually Worked

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When working with molecular systems in GROMACS, energy minimization is a critical step to eliminate steric clashes and create a geometry that’s suitable for molecular dynamics. But how can you be sure it’s actually done properly? If you’ve ever launched…

Avoid the Pain of Script-Based PMF Calculations with GROMACS Wizard

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If you’ve ever performed Potential of Mean Force (PMF) calculations using GROMACS, you probably remember the long list of scripts and careful file organization required to properly apply the Weighted Histogram Analysis Method (WHAM). Piecing together dozens of outputs from…