On Thu, 8 May 2014 16:56:01 +0200, Christophe Wirth
wrote:
>Dear all,
>
>To add another bit to the discussion, I would say that an increase of Rmerge
>and Rmeas is just expected in such a case, isn't it?
>
>According to your tables, in P1, the multiplicity is about 4. In P2, it's
>about 7. In
Dear all,
To add another bit to the discussion, I would say that an increase of Rmerge
and Rmeas is just expected in such a case, isn't it?
According to your tables, in P1, the multiplicity is about 4. In P2, it's about
7. In P3, it's 10. And in P6, it's approaching 20. I would say that this le
Dear Rain,
Maybe a little late, but here are some more comments:
1) What is the deal? For me, one can only know the space group after the
structure has been solved. I have seen quite few cases (e.g. twinning,
non-crystallographic symmetry etc.) that all programs (XDS, pointless) and
statistics
, assessment of the diffraction pattern etc.
Best,
Herman
Von: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] Im Auftrag von Nazia
Nasir Phd2009,ProteinCrystall.Lab
Gesendet: Dienstag, 1. April 2014 20:00
An: CCP4BB@JISCMAIL.AC.UK
Betreff: Re: [ccp4bb] AW: [ccp4bb] Space group problem?
Dear Jurgen,
The
By the way, I have another question related to the number of sites. I just
rethought about what Herman mentioned, and I just realized that the number
of sites, at least strong sites, could be guessed from an anomalous
Patterson map. Therefore I looked at the anomalous Patterson of my data.
The map
Dear Jurgen,
The beam position is fine. we have collected many data sets before and
after this data. Moreover, we the Technical scientist always checks the
beam position before we mount the crystals.
Thanks
On Tue, Apr 1, 2014 at 11:23 PM, Jurgen Bosch wrote:
> check your beam position
> ..
Dear all,
I am just taking advantage of this particular thread to add my query also.
I hope you don't mind Chen.
We haven't solved any structure in our lab using SAD phasing, so pardon me
for sounding naive.
I have a 6.5 A data of anomalous scattering with a 3.5 A data using the Cu
anode.My crys
Dear Herman,
Thank you so much for your suggestions. The density that passes through the
rotational axis is so strong and extended that can be considered as a
significant portion of the molecule. However, some density in the middle
might show some features. I have no experience and this could be o
Dear Chen,
I am not an expert on SAD and MAD. However, at this stage I would not worry too
much about density going through the 2-fold axis. There might be a sulfate ion
or some other buffer component present at that position, or it may just be an
artifact that will go away once the structure ha
