do_x3dna

do_x3dna analyzes structural fluctuations in double-stranded DNA (dsDNA) and RNA from GROMACS molecular dynamics (MD) trajectories and extends the 3DNA package to quantify global helical axis orientation and bending fluctuations.

Key Features:

• Integration with GROMACS: Processes GROMACS MD trajectories to extract nucleic acid structural information.
• Extension of 3DNA: Extends the 3DNA package capabilities specifically for analysis of GROMACS trajectory data.
• Global-Helical Axis Calculation: Calculates the global helical axis of DNA to characterize overall helical orientation and its changes during simulations.
• Bending Fluctuations Analysis: Quantifies bending fluctuations in dsDNA and RNA to assess dynamic conformational behavior.
• dnaMD Python module: Provides a Python module named dnaMD for performing and visualizing detailed statistical analyses on trajectory data.

Scientific Applications:

• Structural dynamics analysis: Characterizes conformational changes and stability of dsDNA and RNA in MD simulations.
• Response to forces and interactions: Investigates how nucleic acids respond to forces and interactions at the atomic level using helical axis and bending metrics.
• Support for molecular biology, genetics, and biophysics: Supplies quantitative descriptors of nucleic acid dynamics relevant to studies in these fields.

Methodology:

Employs computational algorithms and statistical methods to process and interpret GROMACS MD trajectory data, using the dnaMD Python module to perform and visualize detailed statistical analyses.