LOOS
v2.3.2

A collection of tools for working with ENMs, found in the Packages/ElasticNetworks/ directory:
Computes the anisotropic network model for a structure. Reference: Atilgan, et al., Biophys. J. 80, 505515, (2001).
Computes the gaussian network model for a structure. Reference: Bahar, et al, Folding and Design 2, 173181, 1997.
Computes the vibrational subsystem analysis model for a structure. Reference: Woodcock, et al, J. Chem. Phys., 129, 2141099, 2008
Copies atom masses from a PSF into the occupancy field of a PDB
Places the total mass for a residue into its CA (for a PDB with masses)
Creates a DCD depicting motion along the axes taken from an ENM result
Computes Bvalues based on ENM (now deprecated)
Computes the fluctuations from either ENM or PCA output. These can be mapped to Bvalues in a structure.
The ENM tools return all eigenpairs, including the zeromodes. The results are ordered such that the first 6 entries correspond to the zero modes in a typical case. This means that when you specify a mode to subsequent analysis tools (such as porcupine or eigenflucc), you must account for this (i.e. add 6 to the mode requested).