Chemicals and Chemistry Business
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Scientists at University of Bayreuth target chemical research
February 19th, 2010
"Paramagnetic relaxation enhancement (PRE) has become a useful and widely applied tool. in biomolecular NMR spectroscopy. In particular investigations of large complexes or transient contacts benefit from PRE effects," scientists writing in the Journal of the American Chemical Society report.
"Frequently such studies involve modification of the biomacromolecules under study. We here present a method for editing NMR spectra by utilizing a soluble gadolinium complex that broadens nuclear spins being at or close to the macromolecule-solvent interface. NOE signals in NOESY spectra are selectively attenuated if surface exposed nuclear spins are involved. HSQC-type...
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Source: Chemicals and Chemistry Business (2010-02-19)