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Article

Correlation times and adiabatic barriers for methyl rotation in SNase.

Journal of biomolecular NMR - 1 Jul 2004

Chatfield David C, Augsten Alberto, D'Cunha Cassian

Abstract excerpt

The relation of rotational correlation times to adiabatic rotational barriers for alanine methyl groups in staphylococcal nuclease (SNase) is investigated. The hypothesis that methyl rotational barriers may be useful probes of local packing in proteins is supported by an analysis of ten X-ray crystal structures of SNase mutants. The barrier heights are consistent across a set of ten structures of a native SNase...

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PMID: 15213436
DOI: 10.1023/B:JNMR.0000032553.13686.0b

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