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Default High resolution (13)C-detected solid-state NMR spectroscopy of a deuterated protein.

High resolution (13)C-detected solid-state NMR spectroscopy of a deuterated protein.

Related Articles High resolution (13)C-detected solid-state NMR spectroscopy of a deuterated protein.

J Biomol NMR. 2010 Aug 29;

Authors: Tang M, Comellas G, Mueller LJ, Rienstra CM

High resolution (13)C-detected solid-state NMR spectra of the deuterated beta-1 immunoglobulin binding domain of the protein G (GB1) have been collected to show that all (15)N, (13)C', (13)Calpha and (13)Cbeta sites are resolved in (13)C-(13)C and (15)N-(13)C spectra, with significant improvement in T (2) relaxation times and resolution at high magnetic field (750 MHz). The comparison of echo T (2) values between deuterated and protonated GB1 at various spinning rates and under different decoupling schemes indicates that (13)Calpha T (2)' times increase by almost a factor of two upon deuteration at all spinning rates and under moderate decoupling strength, and thus the deuteration enables application of scalar-based correlation experiments that are challenging from the standpoint of transverse relaxation, with moderate proton decoupling. Additionally, deuteration in large proteins is a useful strategy to selectively detect polar residues that are often important for protein function and protein-protein interactions.

PMID: 20803233 [PubMed - as supplied by publisher]



Source: PubMed
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