-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear Raji,
the numbers you have accumulated might already be accurate, it is more a question of how precise your numbers should be - and this might become a long discussion without resulting in a single answer: Take into account that the PDB query relies on the entries in the PDB headers. And take into account that it might not be clear e.g. what is a MR solution: If I solved a structure with a new ligand and get the phases from refining the new data against the protein without ligand, you might call this MR, although personally I think of the search for the correct placement in the unit cell when I speak of MR, so in this case it is not really MR. Other people will have different opinion about this and so forth. Best, Tim On 04/15/2013 03:48 PM, Raji Edayathumangalam wrote: > Hi Folks, > > Does anyone know of an accurate way to mine the PDB for what > percent of total X-ray structures deposited as on date were done > using molecular replacement? I got hold of a pie chart for the same > from my Google search for 2006 but I'd like to get hold of the most > current statistics, if possible. The PDB has all kinds of > statistics but not one with numbers or precent of X-ray structures > deposited sorted by various phasing types or X-ray structure > determination methods. > > For example, an "Advanced Search" on the PDB site pulls up the > following: > > Total current structures by X-ray: 78960 48666 by MR > > 5139 by MAD > > 5672 by SAD > > 1172 by MIR > > 94 by MIR (when the word is completely spelled out) 75 by SIR 5 by > SIR (when the word is completely spelled out) > > That leaves about 19,000 X-ray structures either solved by other > phasing methods (seems unlikely) or somehow unaccounted for in the > way I am searching. Maybe the way I am doing the searches is no > good. Does someone have a better way to do this? > > Thanks much. Raji > - -- - -- Dr Tim Gruene Institut fuer anorganische Chemie Tammannstr. 4 D-37077 Goettingen GPG Key ID = A46BEE1A -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFRbAkAUxlJ7aRr7hoRAujtAKCVnnbGN2Y/15+ZGydTXciFWqGe0wCeM9FL bc9b/l3Hkqz2uLHIJhrTSz4= =hm6F -----END PGP SIGNATURE-----
