Hi all,

I might be missing something here,

but in Coot, can you not just use File -> Fetch PDB & Map using EDS… to get 
both the model and the map? This definitely works for me for your example 1C75.

Bernhard


Bernhard C. Lechtenberg, PhD
Postdoctoral Fellow
Riedl Lab
Sanford-Burnham Medical Research Institute
10901 North Torrey Pines Road
La Jolla, CA 92037, USA
Phone: 858.646.3100 x 4216
Email: [email protected]<mailto:[email protected]>




On May 27, 2014, at 2:51 PM, RiC 
<[email protected]<mailto:[email protected]>> wrote:

 HI Alejandro

This is going to sound like a really dumb question but I found cif2mtz
in my /Applications/ccp4-6.4.0/bin/cif2mtz

in my MacOSX machine.

How do I run this ? I have a CCP4 GUI interface but I cannot find the 
corresponding command in that (cif2mtz).

I tried running it on my normal terminal but that did not work.

Thank you,
Patrick


-----Original Message-----
From: [email protected]<mailto:[email protected]>
Sent: Tue, 27 May 2014 18:47:28 -0300
To: [email protected]<mailto:[email protected]>
Subject: Re: Structure factors to CCP4 maps

cif2mtz hklin 1c75-sf.cif hklout 1c75-sf.mtz

no extra keywords should be needed (but you may want to look at 
http://www.ccp4.ac.uk/html/cif2mtz.html for more info on these)

...tend to believe it's better to change the name of your file avoiding the 
.txt extension (probably included at the time of downloading)

hth

alejandro


On 5/27/14, 18:36, RiC wrote:
I am NOT trying to open the CCP4 file on a text editor !

I am trying to do the following on CCP4/COOT:
 1) Download a PDB  (example 1c75.pdb) from the PDB database

2) Download the corresponding structure factors (example 1c75-sf.cif.txt)

3) Now from the above sf-cif file How can I get a MTZ file using  CCP4

4) Then display the map (either in CCP4 format or MTZ format) in COOT

I want to know how to do step 3 above.

Sorry, I was not more clearer earlier.
Patrick


-----Original Message-----
From: [email protected]<mailto:[email protected]>
Sent: Tue, 27 May 2014 17:31:47 -0400
To: [email protected]<mailto:[email protected]>, 
[email protected]<mailto:[email protected]>
Subject: RE: Structure factors to CCP4 maps

I am terribly sorry, but ccp4 maps are understandable to nobody.  They are 
binary files, for starters.  Even if you develop an uncanny ability to read 
these you will still be left with random looking sea of numbers.

If you trying to generate a model map, you can use sfall.  Given that you are 
posting on coot bb, the easiest way to visualize such map is to use Fc column 
from, say, zero step refmac run.

Be more specific.  Look at pdb_redo, it may be what you are looking for.


Sent on a Sprint Samsung Galaxy S® III


-------- Original message --------
From: RiC
Date:05/27/2014 4:42 PM (GMT-05:00)
To: [email protected]<mailto:[email protected]>
Subject: Structure factors to CCP4 maps

HI,

Does anyone have a step by step guide to go from a structure factor file from 
the PDB to a CCP4 map (understandable to a biologist)  like the one I can 
download on the electron density server?

I am confused and my attempts at using CCP4 keeps coming up with "failed"

Thanks
Patrick

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--
Alejandro Buschiazzo, PhD
Research Scientist
Unit of Protein Crystallography
Institut Pasteur de Montevideo
Mataojo 2020
Montevideo 11400
URUGUAY
Phone: +598 25220910 int. 120
Fax:   +598 25224185
http://www.pasteur.edu.uy/pxf

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