Continuing on the subject, as far as I know there are at least
three flavors of form-factors currently used in refinement programs:
"4 gaussian plus const":
International Tables for Crystallography (1992)
"5 gaussian plus const":
D. Waasmaier & A. Kirfel. Acta Cryst. (1995). A51, 416-431. "New an
Ivan,
it might be helpful/instructive to have a look at this review on the
subject you seem to be actively interested:
Acta Cryst. (2004). A60, 19-32.
and some basic educational illustrations here:
http://phenix-online.org/newsletter/CCN_2011_01.pdf
(see "Electron density illustrations" articl
Hi James!
Thank you very much for the gnuplot-ish version of ${CLIBD}/atomsf.lib!! It
works very nice and is very useful for education!
As I understand, the form factor is the Fourier transform of electron charge
density. It is plotted as f(electrons) vs sin(tetta)/lambda and is approximated
a
Hi all
Position posting on behalf of Rob Pike. Please direct all enquires to
rob.p...@monash.edu.
Prof. Robert Pike is seeking a talented postdoctoral research fellow
to work on protease structure and function in the Department of
Biochemistry and Molecular Biology, Monash University. The succes
I wanted to let you all know with the gracious assistance of Bernhard Rupp
the model has found a new home with Katherine Kantardjieff in the Center
for Molecular Structure were it can be appreciated as it deserves.
I also wanted to extend a thank you to the whole community. I was amazed
and touche
Hi Napo,
i am sorry if you already answered this, why are so sure your solutions are
wrong?
Your maps do not look that bad. What kind of R's do you get?
Are you not happy with the packing of your coils?
Thank you all for the replies.
Sorry for taking so long to reply, I was actually trying some of your
interesting ideas (and I'm still trying).
I tried using the low resolution data sets for the molecular replacement
(thanks to Yuriy Patskovsky), I also improved and increased my coiled
coil d
On 11/01/11 16:32, Anastassis Perrakis wrote:
An experiment that I would like to do as a structural biologist - is the
following:
What about adding an "increasing noise" model to the Fobs's of a few datasets
and re-refining?
How much would that noise change the final model quality metrics and
Hi Ed,
Ok, I'll bite: I would be very interested to see any data sets which
initially were thought to be e.g. PG222 and scale OK ish with that but
turn out in hindsight to be say PG2. Trying to automatically spot this
or at least warn inside xia2 would be really handy. Any
pseudosymmetric examples
Hi, there is a position open in my group at the moment:
Post-Doctoral Researcher – Institute of Biotechnology
Macromolecular Structures Group.
Salary: € 2,700 – 3,600/month depending on qualifications and experience.
Full-Time, Fixed-Term 24 month appointment (with possibility for renewal up to
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