[phenixbb] phenix.xtriage says that entire res range contains anomalous signal but chart says differently?

[Francis E Reyes]

Uber Odd

I reprocessed it and it seems to have resolved itself.

Unfortunately though there seems to be no real significant anomalous  
differences in this dataset. Back to the drawing board.


FR

On Aug 11, 2009, at 8:54 AM, Francis E Reyes wrote:

> 1.4-87	
>
>
> FR
>
> On Aug 11, 2009, at 8:53 AM, Peter Zwart wrote:
>
>> which version are you using?
>>
>> P
>>
>> 2009/8/11 Francis E Reyes <Francis.Reyes at colorado.edu>:
>>> Hi all
>>>
>>>
>>> I ran xtriage on my dataset to 4.5.here's the relevant section
>>> pertaining to anomalous signal
>>>
>>> Analyses of anomalous differences
>>>
>>>  Table of measurability as a function of resolution
>>>
>>>  The measurability is defined as the fraction of
>>>  Bijvoet related intensity differences for which
>>>  |delta_I|/sigma_delta_I > 3.0
>>>  min[I(+)/sigma_I(+), I(-)/sigma_I(-)] > 3.0
>>>  holds.
>>>  The measurability provides an intuitive feeling
>>>  of the quality of the data, as it is related to the
>>>  number of reliable Bijvoet differences.
>>>  When the data are processed properly and the standard
>>>  deviations have been estimated accurately, values larger
>>>  than 0.05 are encouraging.
>>>  Note that this analyses relies on the correctness of the estimated
>>>  standard deviations of the intensities.
>>>
>>>
>>> unused:         - 90.6596 [   0/1   ]
>>> bin  1: 90.6596 -  9.2614 [1371/1382]  0.0375
>>> bin  2:  9.2614 -  7.3520 [1369/1376]  0.0033
>>> bin  3:  7.3520 -  6.4230 [1380/1388]  0.0000
>>> bin  4:  6.4230 -  5.8358 [1353/1359]  0.0016
>>> bin  5:  5.8358 -  5.4176 [1367/1371]  0.0000
>>> bin  6:  5.4176 -  5.0982 [1361/1369]  0.0000
>>> bin  7:  5.0982 -  4.8429 [1378/1382]  0.0000
>>> bin  8:  4.8429 -  4.6321 [1351/1359]  0.0000
>>> bin  9:  4.6321 -  4.4538 [1383/1389]  0.0000
>>> bin 10:  4.4538 -  4.3001 [1390/1393]  0.0000
>>> unused:  4.3001 -         [   0/0   ]
>>>
>>> The full resolution range seems to contain a useful
>>> ammount of anomalous signal. Depending on your
>>> specific substructure, you could use all the data available
>>> for the location of the heavy atoms, or cut the resolution
>>> to speed up the search.
>>>
>>>
>>> If values larger than 0.05 are encouraging why is it telling me that
>>> the entire resolution contains a useful amount of anomalous signal?
>>> Did I process this incorrectly?
>>>
>>>
>>> Thanks
>>>
>>> FR
>>>
>>> ---------------------------------------------
>>> Francis Reyes M.Sc.
>>> 215 UCB
>>> University of Colorado at Boulder
>>>
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>>>
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>>>
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>>>
>>
>>
>>
>> -- 
>> -----------------------------------------------------------------
>> P.H. Zwart
>> Beamline Scientist
>> Berkeley Center for Structural Biology
>> Lawrence Berkeley National Laboratories
>> 1 Cyclotron Road, Berkeley, CA-94703, USA
>> Cell: 510 289 9246
>> BCSB:     http://bcsb.als.lbl.gov
>> PHENIX: http://www.phenix-online.org
>> CCTBX:  http://cctbx.sf.net
>> -----------------------------------------------------------------
>>
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>
> ---------------------------------------------
> Francis Reyes M.Sc.
> 215 UCB
> University of Colorado at Boulder
>
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>
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>
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---------------------------------------------
Francis Reyes M.Sc.
215 UCB
University of Colorado at Boulder

gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D

8AE2 F2F4 90F7 9640 28BC  686F 78FD 6669 67BA 8D5D