posting these attachments as links rather than attachments in CCP4bb messages is the way to go I think.
many institutions offer this service (ours does), and there are also free and for-pay online ways to do this (for example www.yousendit.com, but there are many others).
Then it is also not a problem to send (sorry, link) even large files. The only disadvantage I can think of is that they expire after some time.
Mark J van Raaij
Laboratorio M-4
Dpto de Estructura de Macromoleculas
Centro Nacional de Biotecnologia - CSIC
c/Darwin 3
E-28049 Madrid, Spain
tel. (+34) 91 585 4616
http://www.cnb.csic.es/content/research/macromolecular/mvraaij
On 8 Dec 2011, at 16:39, Ed Pozharski wrote:
> Colleagues,
>
> One recurring question on this bb is "I got this blob of density - is it
> my ligand or what in the name of pink unicorns this is?" Often, a
> screen snapshot is posted, which is very helpful. But it may be better
> if those helping out could rotate density around in 3D. Understandably,
> posting the full model/map is not the way to go. However, I'd see no
> harm in posting just a small cutout of the map in the region of
> interest. It's not a difficult task (fft/mapmask or perhaps some usf
> magic), but is there some user-friendly approach to cutting out a small
> map volume? One can use coot to mask the map and then export it, but
> this seems to generate the ccp4-formatted map that covers more than just
> the masked region, thus the files are fairly large. Does anyone know of
> a simple solution other than placing dummy atoms in the region of
> interest and running fft/mapmask combination? (Is there
> phenix.cut_the_map_around_this_weird_blob ? :)
>
> Cheers,
>
> Ed.
>
>
> --
> "I'd jump in myself, if I weren't so good at whistling."
> Julian, King of Lemurs
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