If there is no indication of twinning and your Rmerge is sensible then
it is probably point group P222
Run pointless - that gives you the quality of each of the 2 folds sepera
tely..
Deciding on the spacegroup is a bit trickier.
That depends on absences along h00 0k0 and 00l, and if there
On 07/09/2011 03:49 AM, weifeng wrote:
Dear All,
There are 8 moleculars in an asymmetry unit, but only one molecular should be
rebulit, what can I do ?
Thanks a lot!
Wei Feng
Use coot - average maps over your best molecule, rebuild that - save
Hello,
I am facing a problem in running auto_tracing in arp/wrap. At first I have
tried using command line mode however I missed R-free value. I have added
the freelabin FREE=FREE and have got an error
Refmac_5.5.0102: Error in label assignments in LABIN
In another way, I used
Dear all,
Recently, I refine two low resolution structures in refmac 5.5. Their
resolutions are 3A and 3.5A respectively.
For 3A structure, after MR by phaser and rigidbody refinementrestraint
refinement by refmac5.5, I got R factor 25% and R free 35%. And then
each time, after my model
Hi
I highly recommend reading the two Brunger papers below: they will
explain the important factors to take note of when refining low-resolution
structures.� I found them very useful when I was learning about
low-resolution refinement.
I would suggest using the deformable elastic network with
Dear Qixu,
refamac 5.6 works well at these resolutions. You can add commands to your
refinement in CCP4i by using the 'Run and view command script' (or something
like that) option and just typing in the extra commands. Jelly-body has worked
very well for me (although I use tigheter
Dear all
an addendum from Phil Evans - his aimless pointless stuff is on our
anonymous ftp site at
ftp.mrc-lmb.cam.ac.uk
then login with user name anonymous or ftp, then cd to /pub/pre.
Some web browsers (especially more modern ones) will take you
straight there if you use the
Hi
I'd run the reflection file through pointless rather than rely on
cell dimensions and/or systematic absences. This is a quick and easy
test to do and more reliable. As Bert suggests, the only real way to
know the symmetry is after successful structure solution and
refinement (but even
Post-doctoral position in Structural biology of RNA decay components.
Location: Orsay, near Paris (45 minutes by regular trains), France
A 2,5 years post-doctoral position, funded by the ANR (Agence
Nationale pour la Recherche), is available to study structural aspects
of protein-protein
I also got something shown in pic.3 and supposed to be some oil droplet,when I
tried to break them I found that was actually a hemisphere type material
attached to the coverslip like a 2D circle and sphere like shape in the hanging
drop, a small hanging-drop within a large one.Ammonium sulfate
Dear Rojan,
On 09/07/2011 09:56, Rojan Shrestha wrote:
Hello,
I am facing a problem in running “auto_tracing” in arp/wrap. At first
I have tried using command line mode however I missed R-free value. I
have added the “freelabin “ FREE=FREE ”” and have got an error
“Refmac_5.5.0102: Error
Hi,
Thank you for your papers. I will read them carefully.
2011/7/9 Elizabeth McSweeney elizabeth.mcswee...@duke.edu
Hi
I highly recommend reading the two Brunger papers below: they will explain
the important factors to take note of when refining low-resolution
structures. I found
Hi,
Thank you for your suggestion.
Could you tell me what is riding hydrogens?
And it seems there is not reference model function in refmac5.6?
2011/7/9 Robbie Joosten robbie_joos...@hotmail.com
Dear Qixu,
refamac 5.6 works well at these resolutions. You can add commands to your
Hi Qixu,
In CCP4i the option is in the refinement parameters:
Use hydrogen atoms: [build all hydrogens] and [] output to coordinate file
What is does is build all hydrogens at the expected coordinates and constrain
them in refinement (i.e. adding hydrogens does not add extra parameters
I would like to announce a PhD position in Protein crystallography and
Biochemistry, on a project entitled Structure/function studies of
Toll-like receptor related proteins”. The project is associated with the
centre of excellence “Inflammation at Interfaces”. The main goal of this
PhD project
Hi,
External structure atomic bond distance restraints for use in refmac are
generated using ProSMART.
The webpage is here: http://www.ysbl.york.ac.uk/mxstat/Rob/index.html
Email me if you want a pre-release version.
Regards,
Rob
On 9 Jul 2011, at 18:00, Robbie Joosten wrote:
Hi Qixu,
Dear CAI Qixu
Refmac does an excellent job at low resolution. Many of the features available
in version 5.6.x are described in a very recent Refmac paper
Murshudov et al. REFMAC5 for the refinement of macromolecular crystal
structures.
Acta Crystallogr D Biol Crystallogr (2011) vol. 67 (Pt 4)
17 matches
Mail list logo