Quick navigation: Home   |    Site Map   ||    References   |    Biography   ||    Copyright   |    Other copyright   |    Contact us   |    Advert   |   
 

Re: [ccp4bb] ctruncate
- Protein crystallography

Main steps:

   - Protein purification
   - Crystallisation

Special:

   - Programs for crystallography
   - X-ray detectors

Basic tutorials:

   - Chemistry
   - Protein
   - Peptide
   - Amino Acids

Xtal community:

   - CCP4BB

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999
Previous message:
Subject: Re: write out unmerged Scalepack file in HKL2000
From: Scott Walsh walshs {- at -} UMBI {- dot -} UMD {- dot -} EDU
Date: 2009-09-09		Next message:
Subject: Re: Distinguishing between P6(5)22 and P6(1)22
From: harry powell harry {- at -} MRC-LMB {- dot -} CAM {- dot -} AC {- dot -} UK
Date: 2009-09-10


Subject: Re: ctruncate
From: Kevin Cowtan cowtan {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2009-09-09

There are two known issues with ctruncate: one with the anisotropic
correction and one with the fitting of as a function of resolution.

The first is easily addressed - try turning off the anisotropy
correction. That may solve the problem.

Ricardo Aparicio wrote:
> Dear all,
>
> For the same input in a ccp4i (v .2.0.4) Scala (v. 3.3.9) job I have
> obtained the following:
>
> with CTRUNCATE (v. 1.0.01)
> ==================
> Col Sort Min Max Num % Mean Mean Resolution
> Type Column
> num order Missing complete abs. Low
> High label
>
> 5 BOTH ? ? 12586 0.00 ? ? -999.00 0.00 F
> F_BA2
>
> with TRUNCATE (v. 6.1)
> ==================
> 5 NONE 1.8 152.8 766 93.91 20.26 20.26 24.93 2.80 F
> F_BA2
>
>
> The final file after Ctruncate cannot be read in by some programs
> although mtzdump can dump it.
>
> Thanks for any comments on possible reasons for this problem.
>
> Ricardo
>
>



ProteinCrystallography.org: Copyright 2006-2010 by Quid United Ltd