1. Introduction

MOLMOL is a program for displaying, analysing, and manipulating molecules. It was written from scratch, replacing the old CONFOR program originally written by Martin Billeter and later modified by Tai-he Xia, both in the group of Prof. K. Wüthrich at the ETH Zürich. The last version was running on a VAX driving an Evans & Sutherland graphics system. Since this machine is completely outdated by now, it was decided to write a new program running on modern graphics workstations.

MOLMOL was first developed under the name COSMOS, but it had to be renamed due to a name collision with a different program.

It was tried to keep the program as general as possible. However, there are some functions that make it especially useful for studying structures of macromolecules obtained by NMR.

The program is freely available by anonymous ftp from one of the following servers, the corresponding directories are given in parentheses:

ftp.mol.biol.ethz.ch (/pub/software/MOLMOL)
ftp.spectrospin.ch (/pub/sag/MOLMOL)
ftp.bruker.de (/pub/bruker/MOLMOL)
ftp.bruker.com (/pub/nmr/mirror.bruker.de/MOLMOL)

All users are required to carefully read and follow the conditions in the file COPYING supplied with the program.

The latest information about the program can always be found on the following web page:

: http://www.mol.biol.ethz.ch/wuthrich/software/molmol/

Please direct comments, suggestions and bug reports to the address on the title page of this manual, preferably by E-mail.