Premium
Intrinsic proton relaxation parameters of hydrated polyglycine from two‐dimensional time domain NMR
Author(s) -
Peemoeller H.,
MacMillan M. B.,
Weglarz W. P.,
Schreiner L. J.,
Thompson R. T.
Publication year - 1999
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/(sici)1097-0282(199911)50:6<630::aid-bip7>3.0.co;2-k
Subject(s) - chemistry , proton , relaxation (psychology) , glycine , proton nmr , magnetization , molecule , nuclear magnetic resonance , computational chemistry , crystallography , stereochemistry , organic chemistry , physics , amino acid , psychology , social psychology , biochemistry , quantum mechanics , magnetic field
Proton two‐dimensional time domain nmr involving T 1 , T 1ρ , T 1D , and T 2 measurements was applied to hydrated polyglycine powders. The results were analyzed for magnetization exchange and found to be consistent with a general three‐site (glycine–water–glycine) exchange model. The intrinsic glycine and water proton relaxation parameters as well as the three exchange rates were obtained. Estimates of correlation times for water molecule motion at hydration sites are presented. © 1999 John Wiley & Sons, Inc. Biopoly 50: 630–640, 1999