[ccp4bb] CNS query

- Protein crystallography

Main steps:

- Protein purification
- Crystallisation

Special:

- Programs for crystallography
- X-ray detectors

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   - Chemistry
   - Protein
   - Peptide
   - Amino Acids

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CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: POSTDOCTORAL POSITION IN PROTEIN COMPLEX CRISTALLOGRAPHY
From: Vanessa Llobet vllobet {- at -} IBMB {- dot -} CSIC {- dot -} ES
Date: 2007-04-04

Next message:
Subject: Re: Summary - Valid to stop Refmac after TLS refinement?
From: "NM Burton, Biochemistry" Nick {- dot -} Burton {- at -} BRISTOL {- dot -} AC {- dot -} UK
Date: 2007-04-04

Subject: CNS query
From: Swanand Gore swanand {- at -} GMAIL {- dot -} COM
Date: 2007-04-04

Dear All,

I have been experimenting with resolution limits in CNS in order to simulate
a low resolution scenario. I increase the high resolution till there are
thrice the reflections as number of atoms in the structure. Most of the
times this works but sometimes CNS aborts with this message:

--------------------------------------------------------------------------------
Problems interpolating or extrapolating data.
Input data had the following distribution:
Data point 1 could not be used
Data point 2 could not be used
Data point 3 could not be used
Data point 4 could be used
Data point 5 could not be used
Data point 6 could be used
Data point 7 could not be used
Data point 8 could not be used
%NAYBRS error encountered: Less than two data points for
interpolation/extrapolation
--------------------------------------------------------------------------------

Surprisingly I did not get anything useful after googling for this. Does
anybody know a wokaround? Or is this to be expected if number of reflections
is low?

Thanks in advance,
Swanand

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: POSTDOCTORAL POSITION IN PROTEIN COMPLEX CRISTALLOGRAPHY
From: Vanessa Llobet vllobet {- at -} IBMB {- dot -} CSIC {- dot -} ES
Date: 2007-04-04

Next message:
Subject: Re: Summary - Valid to stop Refmac after TLS refinement?
From: "NM Burton, Biochemistry" Nick {- dot -} Burton {- at -} BRISTOL {- dot -} AC {- dot -} UK
Date: 2007-04-04