Dear Ethan, List,
> Surely someone must have done this! But I can't recall ever reading
> an analysis of such a refinement protocol.
> Does anyone know of relevant reports in the literature?
Total statistical cross validation is indeed what we should be doing, but
for large structures the com
>
>
> For structures with a small number of reflections, the statistical noise
> in the 5% sets can be very significant indeed. We have seen differences
> between Rfree values obtained from different sets reaching up to 4%.
This is very intriguing indeed!
Is there something specific in these
> > For structures with a small number of reflections, the statistical
> > noise in the 5% sets can be very significant indeed. We have seen
> > differences between Rfree values obtained from different sets reaching
> > up to 4%.
>
> This is very intriguing indeed! Is there something specific i
Hi ChenTiantian,
the R-factors and I/sigma are bad even at low resolution where the first
icering does not influence the results.
Thus, the problem with your data processing has little to do with the
icerings. I guess that the indexing is not correct.
My suggestion:
1) using adxv or a similar
Hi Ian,
compiling on your 32bit machine gave you a 32bit binary, so your 12GB
RAM cannot be used!
HTH,
Kay
Am 20:59, schrieb Ian Tickle:
Hello all, some Fortran developer out there must know the answer to
this one. I'm getting a "forrtl: severe (41): insufficient virtual
memory" error when
Hi
I'd agree with Kay here - I would think that the original indexing is
incorrect.
One thing I notice on the original image as posted - there's a red
cross on it - if that's supposed to mark the beam position, I think
it's about 4mm or so away from the true position.
So -
(1) check th
This should all be in the CNS output file for each cycle.
Boaz
Boaz Shaanan, Ph.D.
Dept. of Life Sciences
Ben-Gurion University of the Negev
Beer-Sheva 84105
Dear Mike,
At Evotec (a UK site), we gave up using GE to service
our GE instruments (!) due to problems with their bureaucracy. Agilent
offer service contracts for Aktas that are competitively priced and
are a work-alike in our experience.
For call-outs, they sub-contract the usual
Hi everyone:
I was hoping I could get your opinion on the performance of the small
approx. 3ml gel filtration columns from GE Healthcare. We currently have
an Akta fplc and we would like to do small runs using small volumes of
sample. As far as I know we have two options:
1. use the Superdex
Hi,
I agree with other people. You must have a wrong index here. Can you tell us
what is the unit cell for this crystal from your determination? I can see
very close spots in the high resolution shell from your image, which are
overlapped into one spot in the low resolution shell. Try to use other
Hi,
You're probably referring to the Superdex 5/150 Tricorn column, with working
volume of 3ml, and not the 15/150?
Those columns work quite nicely for small sample volumes. For analytical
runs 15-25ul injection is pretty nice. The PC columns are originally
designed to be used with the SMART syst
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