Re: [ccp4bb] covalent bond

2017-12-08 Thread Andres Libreros
Thanks Eleanor, John and Nigel for your tips. Actually it seems to be a problem of geometry restraints. Nigel, let me edit the .def file as John recommended and then I'll contact you. Best regards Gerardo Andrés Libreros Laboratório de Biologia Estrutural Aplicada Universidade de São Paulo

Re: [ccp4bb] covalent bond

2017-12-07 Thread Nigel Moriarty
Gerado John is correct that you can modify the restraints model to include a covalent bond. Also in more recent version of Phenix, if the input geometry is approximately correct, the bond can be automatically linked. If you send me the input file, I'll take a closer look. Cheers Nigel ---

Re: [ccp4bb] covalent bond

2017-12-07 Thread Tanner, John J.
You can add a covalent bond by modifying this part of the PHENIX .def file via the gui: geometry_restraints.edits { excessive_bond_distance_limit = 10 bond { action = *add delete change atom_selection_1 = None atom_selection_2 = None symmetry_operation = None

Re: [ccp4bb] covalent bond

2017-12-07 Thread Eleanor Dodson
Is that format correct? Eleanor On 7 December 2017 at 17:32, gerardo andres < 130afa955101-dmarc-requ...@jiscmail.ac.uk> wrote: > Hi everyone. I´m trying to make a covalent bond between a cystein residue > of a protein and its ligand, but always that I do the refinement by Phenix, > the

[ccp4bb] covalent bond

2017-12-07 Thread gerardo andres
Hi everyone. I´m trying to make a covalent bond between a cystein residue of a protein and its ligand, but always that I do the refinement by Phenix, the ligand is placed outside of its electronic density. I edited the PDB file like this: LINK         SG  CYS A 215                 C02 LIG C   1

[ccp4bb] covalent bond

2010-07-14 Thread Vandana Kukshal
how to make covalent bond between ligand and protein residue by using CCp4 package

Re: [ccp4bb] covalent bond

2010-07-14 Thread Paul Emsley
On 14/07/10 12:56, Vandana Kukshal wrote: how to make covalent bond between ligand and protein residue by using CCp4 package JLigand http://www.ysbl.york.ac.uk/~pyoung/JLigand/JLigand.html p.s. Don't Reply if you are not following the same thread - doing so causes confusion to threaded

Re: [ccp4bb] covalent bond

2010-07-14 Thread Garib Murshudov
Better link with nice tutorial from Andrey is: www.ysbl.york.ac.uk/mxstat/ In the JLigand section there are some tutorials from Andrey to demonstrate how covalent links can be generated and used. Garib On 14 Jul 2010, at 14:35, Paul Emsley wrote: On 14/07/10 12:56, Vandana Kukshal wrote: