title: Random sampling of evolution time space and Fourier transform processing.
abstract: Application of Fourier Transform for processing 3D NMR spectra with random sampling of evolution time space is presented. The 2D FT is calculated for pairs of frequencies, instead of conventional sequence of one-dimensional transforms. Signal to noise ratios and linewidths for different random distributions were investigated by simulations and experiments. The experimental examples include 3D HNCA, HNCACB and (15)N-edited NOESY-HSQC spectra of (13)C (15)N labeled ubiquitin sample. Obtained results revealed general applicability of proposed method and the significant improvement of resolution in comparison with conventional spectra recorded in the same time.
authors.affiliation: Department of Chemistry, Warsaw University, Pasteura 1, 02-093 Warszawa, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Kazimierczuk
authors.forename: Anna
authors.initials: A
authors.lastname: Zawadzka
authors.forename: Wiktor
authors.initials: W
authors.lastname: Koźmiński
authors.forename: Igor
authors.initials: I
authors.lastname: Zhukov
mesh_terms: D005583:Fourier Analysis; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008962:Models, Theoretical; D016008:Statistical Distributions; D013995:Time