Psf.rar

Explicit values for each atom's mass and partial charge, used by the force field to calculate physical interactions. Connectivity Tables: Bonds: Explicit pairs of atoms that are chemically bonded. Angles: Triplets of atoms forming specific bond angles.

A standard PSF within this archive typically includes the following sections: psf.rar

Use a utility like WinRAR or 7-Zip to extract the .psf file from the archive. Explicit values for each atom's mass and partial

If the archive fails to open, ensure it was downloaded completely, as RAR files support error recovery records but may still be unreadable if severely truncated. A standard PSF within this archive typically includes

If your software requires a different topology format (like GROMACS .top ), use tools like vmd or parmed to convert the extracted PSF.

A list of every atom in the system, including its unique ID, segment name, residue name, and atom type.

In a NAMD configuration file, point to the extracted file: structure input.psf .