title: Characterization of dynamic processes using deuterium in uniformly 2H,13C,15N enriched peptides by MAS solid-state NMR.
abstract: We present in this paper 2H,13C MAS correlation experiments that are performed on a uniformly 2H,13C,15N labeled sample of Nac-Val, and on the uniformly 2H,15N labeled dipeptide Nac-Val-Leu-OH. The experiments involve the measurement of 2H T1 relaxation times at two different magnetic fields, as well as the measurement of the 2H tensor parameters by evolution of the 2H chemical shift. The data are interpreted quantitatively to differentiate between different side chain motional models.
authors.affiliation: Forschungsinstitut für Molekulare Pharmakologie (FMP) Robert-Rössle-Str. 10 13125 Berlin, Germany.
authors.forename: Maggy
authors.initials: M
authors.lastname: Hologne
authors.forename: Zhongjing
authors.initials: Z
authors.lastname: Chen
authors.forename: Bernd
authors.initials: B
authors.lastname: Reif
mesh_terms: D000111:Acetylcysteine / Q000737:chemistry; D002247:Carbon Isotopes; D003903:Deuterium / Q000737:chemistry*; D007930:Leucine / Q000737:chemistry; D009587:Nitrogen Isotopes; D019906:Nuclear Magnetic Resonance, Biomolecular / Q000379:methods*; D010455:Peptides / Q000737:chemistry*; D012815:Signal Processing, Computer-Assisted; D014633:Valine / Q000737:chemistry
chemical_list: D002247:Carbon Isotopes; D009587:Nitrogen Isotopes; D010455:Peptides; D003903:Deuterium; D007930:Leucine; D014633:Valine; D000111:Acetylcysteine