The 1H-NMR hyperfine shift pattern of the heme in a variety of low-spin ferricytochromes b5 has been analyzed in terms of the angular position of the prosthetic group within a structurally and magnetically-conserved protein matrix. A simple model is presented in which the changes in the spread of the predominantly contact shifted methyl and predominantly dipolar shifted meso-H signals of the heme, as well as shift trends for individual signals, provide sensitive indicators of the orientation of the heme relative to the orbital hole (singly-occupied d orbital), which in turn is related to the rhombic magnetic axes. The invariance of the axial His and non-coordinated residue hyperfine shifts show that it is the heme within a relatively rigid ...
An empirical equation, describing the relationship between the porphyrin methyl hyperfine shifts and...
The substrate-bound form of the enzyme heme oxygenase (HO), which catalyzes the stereospecific α-mes...
An empirical equation, describing the relationship between the porphyrin methyl hyperfine shifts and...
1H nuclear magnetic resonance spectroscopy was used to assign the hyperfine-shifted resonances and d...
The heme in cytochromes c undergoes a conserved out-of-plane distortion known as ruffling. For cytoc...
The [1]H and [15]N resonances of the carbon monoxide complex of ferrocytochrome c' of Rhodobacter ca...
The [1]H and [15]N resonances of the carbon monoxide complex of ferrocytochrome c' of Rhodobacter ca...
In contrast to high-spin ferrous paramagnetic heme proteins, the chemical shifts of the heme protons...
Experimental magnetic susceptibility tensors are reported for eight haems c with bis-His coordinatio...
Proton magnetic resonance assignments of protons from peripheral heme substituents have been carried...
Thesis (Ph. D.)--University of Rochester. Dept. of Chemistry, 2012.Cytochromes c (cyts c) are excell...
AbstractThe geometry of the axial ligands of the hemes in the triheme cytochrome PpcA from Geobacter...
A combination of 2D COSY and NOESY experiments and 1D nuclear Overhauser effect measurements have al...
A combination of 2D COSY and NOESY experiments and 1D nuclear Overhauser effect measurements have al...
AbstractThe prosthetic group of low-spin haem proteins is an iron porphyrin with two axial ligands, ...
An empirical equation, describing the relationship between the porphyrin methyl hyperfine shifts and...
The substrate-bound form of the enzyme heme oxygenase (HO), which catalyzes the stereospecific α-mes...
An empirical equation, describing the relationship between the porphyrin methyl hyperfine shifts and...
1H nuclear magnetic resonance spectroscopy was used to assign the hyperfine-shifted resonances and d...
The heme in cytochromes c undergoes a conserved out-of-plane distortion known as ruffling. For cytoc...
The [1]H and [15]N resonances of the carbon monoxide complex of ferrocytochrome c' of Rhodobacter ca...
The [1]H and [15]N resonances of the carbon monoxide complex of ferrocytochrome c' of Rhodobacter ca...
In contrast to high-spin ferrous paramagnetic heme proteins, the chemical shifts of the heme protons...
Experimental magnetic susceptibility tensors are reported for eight haems c with bis-His coordinatio...
Proton magnetic resonance assignments of protons from peripheral heme substituents have been carried...
Thesis (Ph. D.)--University of Rochester. Dept. of Chemistry, 2012.Cytochromes c (cyts c) are excell...
AbstractThe geometry of the axial ligands of the hemes in the triheme cytochrome PpcA from Geobacter...
A combination of 2D COSY and NOESY experiments and 1D nuclear Overhauser effect measurements have al...
A combination of 2D COSY and NOESY experiments and 1D nuclear Overhauser effect measurements have al...
AbstractThe prosthetic group of low-spin haem proteins is an iron porphyrin with two axial ligands, ...
An empirical equation, describing the relationship between the porphyrin methyl hyperfine shifts and...
The substrate-bound form of the enzyme heme oxygenase (HO), which catalyzes the stereospecific α-mes...
An empirical equation, describing the relationship between the porphyrin methyl hyperfine shifts and...