Just to be clear, Phaser does not require the reflections to be in a standard asymmetric unit, only that they are unique (as the error message thrown says).

Airlie

On Jun 27 2012, Eleanor Dodson wrote:

I suspect you didn't request the FreeR assignment on the TRUNCATE interface? This calls amongst other programs, CAD and CAD makes sure that the reflection list is unique and that it is in a standard asymmetric unit. Most people do it by default so don't hit these problems... I suggest you just run CAD (on the reflection utilities) and select - input all observations , then try again with the output mtz. All that will have happened is that the reflections are now assigned to a standard asymmetric unit and sorted. Eleanor On 26 Jun 2012, at 22:21, Steiner, Roberto wrote:

Don't know where the exact problem is. However, it is definitely possible to use a Crysalis-Scala-Truncate-Phaser pipeline without runtime errors. I have done a few times. I am sure you will be able to get help from Agilent people. If not, feel free to get back to me.

Best
Roberto


On 26 Jun 2012, at 18:34, <Stephen Carr> wrote:

Dear CCP4bb

I have collected a data-set using the supernova x-ray generator from Agilent and taken the mtz file generated by the data processing software in crysalis pro forward for structure solution. The data collection was straight forward and the software seemingly processed the data successfully - space-group P2221, overall Rmerge 9%, I/sigmaI 11, redundancy 4.5 etc. Truncate converted the intensities to structure factors with no problems, but when I tried to use the data for molecular replacement with Phaser it produced the following error:

FATAL RUNTIME ERROR: Reflections are not a unique set by symmetry

I'm not sure how to proceed from here as other programs in the suite do not seem to detect this problem. Also when this error has been mentioned in the past on the bb it was with a data set collected on a Bruker home source and the data processed with Denzo/scalepack, and the suggested solution was to use the Bruker software to process the data.

I am currently attempting to reprocess the data with mosflm, but that is likely to be the subject of another post!

Any suggestions will be gratefully received.

Best wishes,

Steve

Dr Stephen Carr
Research Complex at Harwell (RCaH)
Rutherford Appleton Laboratory
Harwell Oxford
Didcot
Oxon OX11 0FA
United Kingdom
Email [email protected]
tel 01235 567717

Roberto Steiner, PhD
Group Leader
Randall Division of Cell and Molecular Biophysics King's College London

Room 3.10A New Hunt's House Guy's Campus
SE1 1UL, London, UK
Tel 0044-20-78488216
Fax 0044-20-78486435
[email protected]

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