That will work also.

On Wed, Feb 13, 2013 at 2:34 PM, Abhinav Kumar <abhinavk@slac.stanford.edu> wrote:
How about using residue CME which is the CYS and BME linked together.
CME is included in the CCP4 monomer library, and so Phenix should accept it without a dictionary file.

Thanks,
Abhinav

JCSG@SSRL, SLAC
(650) 926-2992

On 02/13/2013 01:02 PM, Nigel Moriarty wrote:
Raj

In the more recent versions of PHENIX, phenix.refine can found and link atoms closer than 3 angstrom if you specify intra_chain=True. In the older versions, you can use phenix.ligand_linking to generate the needed files.

Nigel

PS PHENIX does not read SSBOND or LINK records but there is a script to generate the link files from the LINK records.

On Tue, Feb 12, 2013 at 11:56 PM, Sabine Schneider <sabine.schneider@mytum.de> wrote:
Hello Raj,

do you have the link specified in you PDB file?
Here is an example for an disulphide bond. Usually the link is the line above the CRYST1 card.

SSBOND   1 CYS A  123    CYS A  123                          1555   8555  2.12 

Best,
Sabine






On 02/12/2013 11:21 PM, Rajeshwer Sankhala wrote:

Hello,

I can see additional density just next to Cys residues in my protein structure and it looks like BME is covalently linked to cys. I could form a disulfide bond between BME and Cys in "Refmac 5 review restrain" but when i subject it for refinement BME is thrown away (no disulfide bond). I also given Cif file in refinement but it didnot help. I have a feel that i am missing something in cif file. Can anyone suggest step  by step starting from adding BME to making a link with BME (Cys-BME) and then refinement?

 

Raj



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Nigel W. Moriarty
Building 64R0246B, Physical Biosciences Division
Lawrence Berkeley National Laboratory
Berkeley, CA 94720-8235
Phone : 510-486-5709     Email : NWMoriarty@LBL.gov
Fax   : 510-486-5909       Web  : CCI.LBL.gov