Re: [ccp4bb] How will I know if covalent has been formed between ligand and protein?

2010-07-17 Thread Garib Murshudov

Hi

As far as I know Paul and Eugene are working very hard to make this  
option painlessly available to users. With the current versions of  
refmac and coot I would check carefully at every stage. In coot I  
would look at the distance berween atoms supposed to be linked (even  
if they are not shown as bonds it does not mean that they are not  
bonded)

After coot I would check in the pdb file that link record is present.
If I am wrong, Paul will correct me.

regards
Garib

On 17 Jul 2010, at 00:18, Subhangi Ghosh wrote:


Hi All,

I used JLigand to form a covalent bond between ligand, Benzoate and  
residue Ser and followed the tutorial in the JLigand website and  
refined it. How shall I know that a covalent bond is existing now?  
It does not show in coot as a bond. Also although i had inserted the  
line with Link befor ethe Cryst1 in my i/p pdb file, the o/p file  
does not have any line specifying the link. The Benzoate also shows  
up as a different chain (like if I were to add it without creating a  
bond). Does that mean the for some reason the bond did not form?


Thank you,
Subhangi


[ccp4bb] How will I know if covalent has been formed between ligand and protein?

2010-07-16 Thread Subhangi Ghosh
Hi All,

I used JLigand to form a covalent bond between ligand, Benzoate and residue Ser 
and followed the tutorial in the JLigand website and refined it. How shall I 
know that a covalent bond is existing now? It does not show in coot as a bond. 
Also although i had inserted the line with Link befor ethe Cryst1 in my i/p pdb 
file, the o/p file does not have any line specifying the link. The Benzoate 
also shows up as a different chain (like if I were to add it without creating a 
bond). Does that mean the for some reason the bond did not form?

Thank you,
Subhangi