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Dear Wei,

if you are not too familiar with shelx c/d/e, I suggest the following
procedure, provided shelx c/d/e are installed:
- - get hkl2map from http://webapps.embl-hamburg.de/hkl2map/
- - run hkl2map from a terminal and from the directory where your .sca
file is
- - provide a project name (I call it 'foo' for now) and run the first
two steps, i.e. shelxc and shelxd
- - close hkl2map

now inside the directory there will be several files, the important
ones being foo.hkl, foo_fa.hkl, and foo_fa.res

- - use the program coordconv from CCP4 in order to get the fractional
coordinates of your substructure and copy the coordinates into the
foo_fa.res
- - type 'shelxe foo foo_fa -a -h -q' and 'shelxe foo foo_fa -a -h -q
- -i' and check if one of the resulting PDB files foo.pdb and foo_i.pdb
(together with the corresponding map files foo.phs and foo_i.phs) make
sense.

Cheers,
Tim

On 03/15/2013 10:13 AM, Wei Feng wrote:
> Dear all, I have an original  sca file with anomalous signal  and a
> heavy atoms sites file in PDB format.
> 
> 
> PDB FILE : CRYST1   77.780   77.780  187.640  90.00  90.00 120.00 P
> 61 2 2 SCALE1      0.012857  0.007423 -0.000000       -0.00000 
> SCALE2     -0.000000  0.014846 -0.000000        0.00000 SCALE3
> 0.000000 -0.000000  0.005329       -0.00000 ATOM      1  S   HAT
> 1     -62.495 123.694  12.804  0.36 20.00           S ATOM      9
> S   HAT     9     -49.984  90.531   2.130  0.32 20.00           S 
> ATOM     10  S   HAT    10     -59.282 106.437   9.760  0.74 20.00
> S ATOM     84  S   HAT    84     -60.153 114.024  15.399  0.52
> 20.00           S ... ...
> 
> 
> Can I use  SHELXE to perform phasing and density modification?  How
> to do it? Thank you for your help! Wei
> 
> 

- -- 
- --
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

GPG Key ID = A46BEE1A

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