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PDB REDO: Automated re-refinement of X-ray structure models in the PDB

: Joosten, R.P.; Salzemann, J.; Bloch, V.; Stockinger, H.; Berglund, A.-C.; Blanchet, C.; Bongcam-Rudloff, E.; Combet, C.; Costa, A.L. da; Deleage, G.; Diarena, M.; Fabbretti, R.; Fettahi, G.; Flegel, V.; Gisel, A.; Kasam, V.; Kervinen, T.; Korpelainen, E.; Mattila, K.; Pagni, M.; Reichstadt, M.; Breton, V.; Tickle, I.J.; Vriend, G.


Journal of Applied Crystallography 42 (2009), Nr.3, S.376-384
ISSN: 0021-8898
Fraunhofer SCAI ()

Structural biology, homology modelling and rational drug design require accurate three-dimensional macromolecular coordinates. However, the coordinates in the Protein Data Bank (PDB) have not all been obtained using the latest experimental and computational methods. In this study a method is presented for automated re-refinement of existing structure models in the PDB. A large-scale benchmark with 16 807 PDB entries showed that they can be improved in terms of fit to the deposited experimental X-ray data as well as in terms of geometric quality. The re-refinement protocol uses TLS models to describe concerted atom movement. The resulting structure models are made available through the PDB REDO databank ( redo/). Grid computing techniques were used to overcome the computational requirements of this endeavour.