[ccp4bb] PDB-derived SF to map

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CCP4bb <-- 2007 <-- July 2007 <-- 06 July 2007

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Subject: Problems in refinement with NCS and B-values
From: ANA MARIA MISIC ammisic {- at -} WISC {- dot -} EDU
Date: 2007-07-06

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Subject: Re: PDB-derived SF to map
From: Celeste MacElrevey celeste_macelrevey {- at -} URMC {- dot -} ROCHESTER {- dot -} EDU
Date: 2007-07-06

Subject: PDB-derived SF to map
From: Celeste MacElrevey celeste_macelrevey {- at -} URMC {- dot -} ROCHESTER {- dot -} EDU
Date: 2007-07-06

Good afternoon bb,

I am at a loss, and I am hoping someone will take the time to help me. I am trying to generate an electron density map, using SFs and coordinates obtained from the pdb. Please feel free to refer me to appropriate threads, I'm having trouble finding them. I have generated an mtz file with hkl, F and sigma. Using FFT I made a simple map - but putting it up in Coot, along with the PDB file I used in FFT, I'm getting a non-sensical map. Clearly, I'm neglecting something important. The log file indicates that it is picking up the space group info (P212121). I don't have a lot of experience trouble-shooting maps in CCP4i. Any advice would be much appreciated. The EDS can't calculate maps for this structure either, it errors out due to R-factor discrepancy.

Many thanks,
Celeste

Celeste M. MacElrevey, Doctoral Candidate
Department of Biochemistry and Biophysics, Box 712
University of Rochester, School of Medicine and Dentistry
601 Elmwood Ave.
Rochester, NY 14642
(585) 276-0346

CCP4bb navigation

CCP4bb <-- 2007 <-- July 2007 <-- 06 July 2007

Previous message:
Subject: Problems in refinement with NCS and B-values
From: ANA MARIA MISIC ammisic {- at -} WISC {- dot -} EDU
Date: 2007-07-06

Next message:
Subject: Re: PDB-derived SF to map
From: Celeste MacElrevey celeste_macelrevey {- at -} URMC {- dot -} ROCHESTER {- dot -} EDU
Date: 2007-07-06