Abstract
The secondary chemical shift experienced by the1H-NMR resonances of the α C−H protons in proteins can be correlated with their backbone torsional angles ψ, which dictate the orientation of the α C−H proton to the adjacent carbonyl group. It is shown that α C−H protons present in β-sheet regions experience downfield secondary shifts , whereas those in α-helix regions experience upfield secondary shifts. The predictive use of this correlation in assignment studies is illustrated for the calcium-binding protein paravalbumin, for which a crystal structure is available, and troponin C, for which no crystallographic data are available.
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References
Campbell ID, Dobson CM, & Williams RJP (1975) Proc. R. Soc. Lond. A345, 23–40.
Wuthrich K (1976) 'NMR in Biological Research: Peptides and Proteins, North Holland/American Elsevier.
Clayden NJ & Williams RJP (1982) J. Mag. Res.49, 383–396.
Wagner G & Wuthrich K (1982) J. Mol. Biol.155, 347–365.
Inagaki F, Clayden NJ, Tamiya N & Williams RJP (1980) Eur. J. Biochem.123, 99–104.
Delepierre M, Dobson CM & Poulsen FM (1982) Biochemistry21, 4756–4761.
Delepierre M & Redfield C, personal communication.
Bundi A & Wuthrich K (1979) Bioploymers13, 285–297.
Brookhaven Protein Data Bank.
Jardetsky O & Roberts GCK (1981) ‘NMR in Molecular Biology’, Academic Press.
Levine BA, Dalgarno DC, Esnouf MP, Klevit RE, Scott GMM & Williams RJP (1983) in CIBA Foundation Symposium 93, p 72–97, Pitman.
Moews PC & Kretsinger RH (1975) J. Mol. Biol.91, 201–228.
Poulsen FM, Hoch JC & Dobson CM (1980) Biochemistry19, 2597–2607.
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Dalgarno, D.C., Levine, B.A. & Williams, R.J.P. Structural information from NMR secondary chemical shifts of peptide α C−H protons in proteins. Biosci Rep 3, 443–452 (1983). https://doi.org/10.1007/BF01121955
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DOI: https://doi.org/10.1007/BF01121955