[ccp4bb] Establishing connecitivity Part II...

2007-06-12 Thread James Pauff
Hello again all, sorry to clutter your inboxes... With regards to my problem of connecting a Molybdopterin correctly, does anyone have suggestions as to the use of LINK statements in my coordinate file? Or the use of LINK statements at all? This was an idea when we first started refining the str

Re: [ccp4bb] Establishing connecitivity...

2007-06-11 Thread Kim Henrick
Your ligand may well be MTQ or MTV whcih already exists in the PDB (MOLYBDOPTERIN-S,S)-DIOXO-THIO-MOLYBDENUM(V) S / \ this has the peterin Mo(S)(O2) \ / S you can download the dictionary connectivity from either

Re: [ccp4bb] Establishing connecitivity...

2007-06-11 Thread William Scott
I think you can do what you want using elbow.builder in phenix with a smiles string. You can use something like this to make the cofactor: http://www.molinspiration.com/cgi-bin/properties Then use elbow.builder to make the pdb and cif files, and do your refinements in phenix. It may be possibl

[ccp4bb] Establishing connecitivity...

2007-06-11 Thread James Pauff
Hello again all, We have a molybdopterin active site cofactor. It is a single molybdenum atom, with 2 oxygens and 1 sulfur as ligands, and coordinated to a pterin ring via 2 more sulfur atoms. The geometry of the molybdenum is very roughly square pyramidal. The issue that we are having involves