Abstract
In experiments with proteins of molecular weights around 100 kDa the implementation of [15N,1H]-TROSY-elements in [15N]-constant-time triple resonance experiments yields sensitivity enhancements of one to two orders of magnitude. An additional gain of 10 to 20% may be obtained with the use of 'sensitivity enhancement elements'. This paper describes a novel sensitivity enhancement scheme which is based on concatenation of the 13C alpha-->15N magnetization transfer with the ST2-PT element, and which enables proper TROSY selection of the 15N multiplet components.
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