[MMTK] question about units

khinsen at cea.fr khinsen at cea.fr
Mon Aug 1 16:20:10 CEST 2005

On Jul 25, 2005, at 2:30, OMAR NABEEL ALY DEMERDASH wrote:

> Hello,
> What units of mass are used in the matrix that converts the normal mode
> eigenvectors to un-mass-weighted vectors.  Also, it is the masses of

All masses are in atomic mass units. However, the conversion matrix 
contains the square roots of the masses.

> the residues that are used, not C-alpha masses, correct?

Yes. A C-alpha model has particles of the residue mass situated at the 
C-alpha positions.

Konrad Hinsen
Laboratoire Léon Brillouin, CEA Saclay,
91191 Gif-sur-Yvette Cedex, France
Tel.: +33-1 69 08 79 25
Fax: +33-1 69 08 82 61
E-Mail: khinsen at cea.fr

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