@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] Difficulty indexing diffraction, cell too small
Related to manual indexing, >20 years ago I wrote a program to transform a
list of peaks from the original Xentronics detector to points in reciprocal
space. The peaks were written as a PDB file so the peaks (no
CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] Difficulty indexing diffraction, cell too small
There are a couple of tricks I know for dealing with datasets that are
problematic to index (ignore if you've tried them):
1. double-check the machine parameters (detector to crystal distance and
be
There are a couple of tricks I know for dealing with datasets that are
problematic to index (ignore if you've tried them):
1. double-check the machine parameters (detector to crystal distance and
beam center in particular).
2. Index in mosflm using widely separated images (usually n,n+45,n+90
Jason,
How does the diffraction pattern look?
Do you see multiple lattices or split spots?
It seems to me that XDS isn't able to index it (correctly) possibly because
of these things.
It's always worth it to manually page through your images just to confirm.
I've personally seen people just use X
s your data for you. That's starting to become more common
> nowadays.
>
> Jim
>
> -Original Message-
> From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Jason
> Busby
> Sent: Tuesday, May 17, 2011 4:44 PM
> To: CCP4BB@JISCMAIL.AC.UK
>
1 4:44 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: [ccp4bb] Difficulty indexing diffraction, cell too small
Hi,
I have a diffraction data-set from a hexagonal rod shaped crystal, to about
2.0 Å. The problem comes when I try to process the data - Mosflm won't
index it, and XDS indexes it as P622, but t
Hi,
I have a diffraction data-set from a hexagonal rod shaped crystal, to about 2.0
Å. The problem comes when I try to process the data - Mosflm won't index it,
and XDS indexes it as P622, but the unit cell is too small to contain even a
single molecule of my protein. I have tried integrating
