Hi Pavel: I tried phenix.fmodel at different resolutions up to 20A, and never got any big envelop covering the whole molecule.
...anyway, thanks... Hailiang > Hi Hailiang, > > to get feeling about how maps may look like at different resolutions do > the > following learning exercise: download a structure from PDB and compute > Fcalc > maps at different resolutions: > > phenix.fmodel model.pdb high_res=1 > phenix.fmodel model.pdb high_res=2 > phenix.fmodel model.pdb high_res=3 > phenix.fmodel model.pdb high_res=4 > phenix.fmodel model.pdb high_res=5 > ... > phenix.fmodel model.pdb high_res=10 > phenix.fmodel model.pdb high_res=20 > > then load them in Coot and you will get your answer. > > Pavel. > > > On Wed, Jun 1, 2011 at 4:35 PM, Hailiang Zhang <[email protected]> wrote: > >> Hi there, >> >> I have a preliminary question. For very low resolution data, say 10A or >> even lower, is the density map supposed to be more like a big envelop >> covering the whole molecule, or more like a collection of isolated small >> envelops covering small motifs (eg helix as cylinder envelop)? I got the >> later one but need to make sure and persuade others I didn't do things >> wrong. >> >> Any references will also be appreciated! >> >> Thanks! >> >> Hailiang >> >
