MDAnalysis is an open source Python-based library that is
used to quickly and interactively analyze molecular dynamic simulations. Using functions
already with, a new analysis module for analyzing dihedral angles, particularly
ϕ, ψ, χ1 and χ2, can be made which will calculate all of the dihedral angles of
interest, for each time step of the trajectory. This can significantly increase
the speed and ease with which dihedral angles are characterized and studied.