[ccp4bb] indexing multiple lattices

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CCP4bb <-- 2008 <-- February 2008 <-- 18 February 2008

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Subject: Re: crashing-out protein eluted from Nickel column
From: Ngo Duc Tri ngoductri {- at -} GMAIL {- dot -} COM
Date: 2008-02-18

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Subject: Re: indexing multiple lattices
From: Clemens Vonrhein vonrhein {- at -} GLOBALPHASING {- dot -} COM
Date: 2008-02-18

Subject: indexing multiple lattices
From: Jason Greenwald jason {- dot -} greenwald {- at -} PHYS {- dot -} CHEM {- dot -} ETHZ {- dot -} CH
Date: 2008-02-18

I have a crystal that grows with multiple lattices despite the fact
that the crystals look more or less like single crystals under the
microscope.

With a lot of guesswork I am able to index with mosflm by carefully
selecting spots that appear to be in the same lattice.
Now I would like to use the known cell and symmetry to index more
datasets that have the same "twinning" problem.

Is there any way to do a search of crystal orientation matrices
with a known cell to find the best fit to the diffraction pattern?
The data were collected on the Pilatus6M detector so I am limited to
mosflm and XDS for processing. Both packages always trying to index
the crystal without using the known cell and symmetry to get the
orientation matrix. I thought of writing a script to do a full search
(testing all orientations sequentially) in mosflm but I thought that
I should submit to the experts before I try anything.

cheers.
Jason

CCP4bb navigation

CCP4bb <-- 2008 <-- February 2008 <-- 18 February 2008

Previous message:
Subject: Re: crashing-out protein eluted from Nickel column
From: Ngo Duc Tri ngoductri {- at -} GMAIL {- dot -} COM
Date: 2008-02-18

Next message:
Subject: Re: indexing multiple lattices
From: Clemens Vonrhein vonrhein {- at -} GLOBALPHASING {- dot -} COM
Date: 2008-02-18