113Cd-1H hetero TOCSY: A method for determining metal-protein connectivities

Kevin H. Gardner, Joseph E. Coleman

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

113Cd-1H NMR correlation experiments have been extremely useful for determining the amino acid ligands that form metal-binding sites in proteins. To date, the majority of these methods have used heteronuclear multiple-quantum transfer as the basis for establishing correlations. In this paper, we demonstrate the feasibility of using correlation methods that employ heteronuclear cross-polarization (hetero TOCSY) as viable alternatives. Additionally, we couple hetero TOCSY with selective excitation and transfer procedures to take advantage of the small number of heteronuclei usually present in metalloprotein systems. One- and two-dimensional experiments are presented as examples of these techniques.

Original languageEnglish (US)
Pages (from-to)761-774
Number of pages14
JournalJournal of biomolecular NMR
Volume4
Issue number6
DOIs
StatePublished - Nov 1 1994

Keywords

  • Cd
  • Hetero TOCSY
  • Heteronuclear cross-polarization
  • Metalloproteins
  • NMR

ASJC Scopus subject areas

  • Biochemistry
  • Spectroscopy

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