Proton NMR study of the electronic and molecular structure of the heme cavity in horseradish peroxidase. Complete heme resonance assignments based on saturation transfer and nuclear Overhauser effects

1987 ◽  
Vol 109 (1) ◽  
pp. 265-272 ◽  
Author(s):  
V. Thanabal ◽  
Jeffrey S. DeRopp ◽  
Gerd N. La Mar
FEBS Letters ◽  
1984 ◽  
Vol 176 (2) ◽  
pp. 307-312 ◽  
Author(s):  
Christopher M. Dobson ◽  
Martin A. Howarth ◽  
Christina Redfield

1989 ◽  
Vol 67 (12) ◽  
pp. 2067-2070 ◽  
Author(s):  
B. Mario Pinto ◽  
Blair D. Johnston ◽  
Ruby Nagelkerke ◽  
Eusebio Juaristi ◽  
Eduardo A. González

Nuclear Overhauser enhancement difference experiments and magnetization transfer experiments on 2-benzoyl-5-methyl-5-aza-1,3-dithiacyclohexane 1 at 186 K show conclusively that the N-methyl group adopts a preferred axial orientation. The result has implications for evaluation of the origin of the anomeric effect in this and related compounds. The free energy of activation for ring interconversion in 1 is estimated by spin saturation transfer experiments to be 10.7 ± 0.4 kcal mol−1. Keywords: D NMR, conformational analysis, nuclear Overhauser enhancement, saturation transfer.


1984 ◽  
Vol 106 (16) ◽  
pp. 4438-4444 ◽  
Author(s):  
Jeffrey S. De Ropp ◽  
Gerd N. La Mar ◽  
Kevin M. Smith ◽  
Kevin C. Langry

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