Related Experiment Video
Updated: May 29, 2026
05:37
Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes
Published on: April 4, 2025
Interpreting the effects of DNA polymerase variants at the structural level
Matteo Arnaudi1,2, Karolina Krzesińska1,2, Ludovica Beltrame1,2
1Cancer Structural Biology, Danish Cancer Institute, Copenhagen, Denmark.
Molecular Oncology
|May 28, 2026
Summary
We structurally analyzed over 60,000 genetic variants in DNA polymerases POLE and POLD1. Our findings provide a detailed interpretation of variant impacts and predict functional consequences, aiding future research and variant classification.
Area of Science:
- Molecular Biology
- Genetics
- Structural Biology
Background:
- Genetic variants in DNA polymerases POLE and POLD1 impact protein function.
- Understanding the structural basis of these variants is crucial for accurate interpretation.
Purpose of the Study:
- To structurally analyze over 60,000 missense variants in POLE and POLD1.
- To provide detailed structural interpretations and predict functional consequences of these variants.
Main Methods:
- Utilized MAVISp, a modular structure-based framework.
- Employed molecular dynamics simulations.
- Integrated free energy calculations and analysis of active site proximity.
Main Results:
- Provided structural interpretations for variants in ClinVar, COSMIC, and cBioPortal.
- Predicted functional consequences for novel variants, creating a comprehensive catalog.
- Classified Variants of Uncertain Significance (VUS) according to ACMG guidelines.
- Identified variants affecting catalytic sites and DNA-binding affinity.
Conclusions:
- Advanced understanding of structural variant effects in POLE and POLD1.
- Supported variant classification, prioritization, and functional interpretation in diverse contexts.
Keywords:
cancer genomicsfree energy calculationslong‐range structural communicationprotein stabilityprotein structuresvariant effectsMore Related Videos
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