Assignment of the 13C Nuclear Magnetic Resonance Spectrum of a Short DNA-duplex with 1H-detected Two-dimensional Heteronuclear Correlation Spectroscopy
Overview
Authors
Affiliations
Proton-detected 1H-13C heteronuclear correlated spectroscopy [( 1H,13C]-COSY) was used to establish relations between the carbon-13 and proton nuclear magnetic resonance chemical shifts in the hexadeoxynucleoside pentaphosphate d-(GCATGC)2. Using the previously established sequence-specific proton NMR assignments, sequence-specific assignments were thus obtained for nearly all proton-bearing carbons. This approach offers a new criterion for distinguishing between the proton NMR lines of purines and pyrimidines, based on the different proton-carbon-13 coupling constants. Furthermore, the adenine ring carbon 2 has a unique carbon-13 chemical shift, which enables a straightforward identification of the adenine C2H resonances by [1H,13C]-COSY.
Morozov D, Mironov V, Moryachkov R, Shchugoreva I, Artyushenko P, Zamay G Mol Ther Nucleic Acids. 2021; 25:316-327.
PMID: 34458013 PMC: 8379633. DOI: 10.1016/j.omtn.2021.07.015.
Solid-state NMR determination of sugar ring pucker in (13)C-labeled 2'-deoxynucleosides.
van Dam L, Ouwerkerk N, Brinkmann A, Raap J, Levitt M Biophys J. 2002; 83(5):2835-44.
PMID: 12414715 PMC: 1302367. DOI: 10.1016/S0006-3495(02)75292-2.
Hydrogen-bonding effects and 13C-NMR of the DNA double helix.
Borer P, LaPlante S, Zanatta N, Levy G Nucleic Acids Res. 1988; 16(5):2323-32.
PMID: 3357779 PMC: 338219. DOI: 10.1093/nar/16.5.2323.
Schmieder P, Ippel J, van den Elst H, van der Marel G, VAN Boom J, Altona C Nucleic Acids Res. 1992; 20(18):4747-51.
PMID: 1408787 PMC: 334227. DOI: 10.1093/nar/20.18.4747.