ArticleJournal of magnetic resonance (San Diego, Calif. : 1997)2020
Algebraic expressions for Carr-Purcell-Meiboom-Gill relaxation dispersion for N-site chemical exchange.
Article in Journal of magnetic resonance (San Diego, Calif. : 1997), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 10 citations in OpenAlex.
- Hierarchical multi-timescale structural dynamics of the disordered N-terminal of p53.Nature communications · 2026Article
- Ligand-induced protein transition state stabilization switches the binding pathway from conformational selection to induced fit.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Site-based description of RJournal of magnetic resonance (San Diego, Calif. : 1997) · 2023Article
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3 authors at 2 institutions in 1 country.
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Abstract
The Carr-Purcell-Meiboom-Gill (CPMG) NMR relaxation dispersion experiment measures the effective relaxation rate constant during a train of spin-echo pulse sequence elements as a function of the echo time. The CPMG experiment is a powerful method for characterizing chemical and conformational dynamic processes, termed chemical and conformational exchange, on μs-ms time scales, comparable to the experimentally accessible echo times. Approximate theoretical expressions for the effective relaxation rate constant for N-site chemical exchange have been reported (H. Koss, M. Rance, and A. G. Palmer, Biochemistry 57, 4753-4763 (2018)). Expressions for the effective relaxation rate constant have been improved by using the Cayley-Hamilton theorem to obtain simple and accurate approximations of the average Liouvillian for the CPMG experiment. The improved accuracy of the results allows efficient analyses of experimental data. In addition, the relationship is clarified between the approach of Koss and coworkers and that of Jen (1978).
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