| Literature DB >> 8219743 |
D D Laws1, A C de Dios, E Oldfield.
Abstract
Computation of the 13C alpha chemical shifts (or shieldings) of glycine, alanine and valine residues in bovine and Drosophila calmodulins and Staphylococcal nuclease, and comparison with experimental values, is reported using a gauge-including atomic orbital quantum-chemical approach. The full approximately 24 ppm shielding range is reproduced (overall r.m.s.d. = 1.4 ppm) using 'optimized' protein structures, corrected for bond-length/bond-angle errors, and rovibrational effects.Entities:
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Year: 1993 PMID: 8219743 DOI: 10.1007/bf00174614
Source DB: PubMed Journal: J Biomol NMR ISSN: 0925-2738 Impact factor: 2.835