Dear All, A non-CCP4 question:
In proteins (and RNA), the term "rotamer" is used to refer to a specific conformer (or class of conformers), found in structures. According to IUPAC (http://goldbook.iupac.org/R05407.html), the term should only apply to rotation around a single bond, which is not how the term is applied to amino acids by structural biologists. So, was a decision taken at some point to "extend" the IUPAC definition? yours curiously, James -- Dr. James W. Murray Division on Molecular Biosciences Imperial College, LONDON Tel: +44 (0)20 759 48895