CheckShift: automatic correction of inconsistent chemical shift referencing
- 106 Downloads
The construction of a consistent protein chemical shift database is an important step toward making more extensive use of this data in structural studies. Unfortunately, progress in this direction has been hampered by the quality of the available data, particularly with respect to chemical shift referencing, which is often either inaccurate or inconsistently annotated. Preprocessing of the data is therefore required to detect and correct referencing errors. We have developed a program for performing this task, based on the comparison of reported and expected chemical shift distributions. This program, named CheckShift, does not require additional data and is therefore applicable to data sets where structures are not available. Therefore CheckShift provides the possibility to re-reference chemical shifts prior to their use as structural constraints.
KeywordsChemical shifts Re-referencing NMR
- Ginzinger SW, Gräupl T, Heun V (2007) SimShiftDB: Chemical-Shift-based homology modeling’. Proceedings of the first International Conference on Bioinformatics Research and Development, BIRD 2007, Springer LNBI 4414Google Scholar