Abstract

A new experimental mixing scheme for band-selective Hartmann-Hahn transfer between the H N and H α resonances of peptides and proteins is presented. This form of tailored correlation spectroscopy (TACSY) allows enhancement of the sensitivity of specific (H N-H α)-fingerprint signals compared to broadband TOCSY experiments. The design criteria as well as experimental applications of the multiple-pulse sequence CABBY-1 are presented.

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