Re: [ccp4bb] curvature of a helix

2009-04-01 Thread Sergei Strelkov
Dear Peter, some time ago I have written the program Twister to analyze the geometry of coiled coils (Strelkov SV and Burkhard P (2002) J. Struct. Biol.) It will calculate the curvature of each individual a-helix in a coiled coil, among other things. But in fact you can ask it to analyze an iso

[ccp4bb] curvature of a helix

2009-04-01 Thread peter hudson
Hello all I would like to calculate the curvature of a curved helix. Is any method or program exists, which can calculate the cuvature of a curved helix? I would appreciate the suggestions. Thanks in advance