20 Sep
2004
20 Sep
'04
7:57 a.m.
Hi All, I have a small problem. I work on GPCRs and would like to use some electron crystallography data. However, the data given are distances between the centres of transmembrane alpha helices rather than a specific atom eg CA. Does anyone know how I would specify the centre of a helix when using distance restraints?. Many Thanks in advance John