Related Experiment Video
Updated: Jun 13, 2025
07:34
Production of Nanofibrillar Patterned Collagen for Tissue Engineering
Published on: September 20, 2024
343
ColBuilder: flexible structure generation of crosslinked collagen fibrils
Debora Monego1,2, Matthias Brosz2,3, Johanna Buck1,2,3
1Max Planck Institute for Polymer Research, Mainz 55128, Germany.
Bioinformatics (Oxford, England)
|May 5, 2025
Summary
ColBuilder automates the creation of accurate molecular models for collagen fibrils, including their complex crosslinking. This tool aids in setting up molecular simulations for better understanding connective tissue structures.
Area of Science:
- Biophysics
- Materials Science
- Computational Biology
Background:
- Collagen fibrils are essential for connective tissues.
- Accurate molecular modeling is difficult due to hierarchical structure and crosslinking.
Purpose of the Study:
- To develop an automated tool for generating atomistic models of crosslinked collagen fibrils.
- To facilitate the setup of molecular dynamics simulations for collagen.
Main Methods:
- ColBuilder integrates homology modeling, higher-order structure generation, and optimization.
- It allows control over sequence, crosslinking patterns, and fibril dimensions.
- The tool is available as an open-source command-line application and web interface.
Main Results:
- ColBuilder successfully generates complete fibril structures with user-defined parameters.
- Molecular dynamics simulations validate the generated models against experimental data.
- The models show agreement with D-band periodicity and force-extension behavior.
Conclusions:
- ColBuilder provides a robust platform for modeling collagen fibrils.
- It enables detailed investigation of collagen structure-property relationships.
- The tool advances research in connective tissue biomechanics and biomaterials.
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