Abstract
Coarse-grained (CG) models reduce the cost of molecular dynamics simulations keeping the essence of molecular interactions. Still, the diversity of CG representations (sizes, connectivity, naming, etc.) hampers the handling and visualization of such models. SIRAH Tools comprises a set of utilities to convert all-atoms coordinates to arbitrary residue-based CG schemes, write GROMACS' topological information at any resolution into PSF format and a VMD plugin to visualize, analyze and retrieve pseudo-atomistic information from CG trajectories performed with the SIRAH force field. These tools facilitate the use of intricate CG force fields outside the small developer's community. Different utilities of SIRAH Tools are written in Perl, Tcl, or R. Documentation and source codes are freely distributed at http://www.sirahff.com : mmachado@pasteur.edu.uy or spantano@pasteur.edu.uy.
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