title: Graphical interpretation of Boolean operators for protein NMR assignments.
abstract: We have developed a graphics based algorithm for semi-automated protein NMR assignments. Using the basic sequential triple resonance assignment strategy, the method is inspired by the Boolean operators as it applies "AND"-, "OR"- and "NOT"-like operations on planes pulled out of the classical three-dimensional spectra to obtain its functionality. The method's strength lies in the continuous graphical presentation of the spectra, allowing both a semi-automatic peaklist construction and sequential assignment. We demonstrate here its general use for the case of a folded protein with a well-dispersed spectrum, but equally for a natively unfolded protein where spectral resolution is minimal.
authors.affiliation: Unité de Glycobiologie Structurale et Fonctionelle, UMR 8576 CNRS, IFR 147, Université des Sciences et Technologies de Lille, 59655, Villeneuve d'Ascq, France.
authors.forename: Dries
authors.initials: D
authors.lastname: Verdegem
authors.forename: Klaas
authors.initials: K
authors.lastname: Dijkstra
authors.forename: Xavier
authors.initials: X
authors.lastname: Hanoulle
authors.forename: Guy
authors.initials: G
authors.lastname: Lippens