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Title: /sup 1/H NMR probe for hydrogen bonding of distal residues to bound ligands in heme proteins: isotope effect on heme electronic structure of myoglobin

Journal Article · · J. Am. Chem. Soc.; (United States)
DOI:https://doi.org/10.1021/ja00257a068· OSTI ID:7076510

The authors demonstrate herein an isotope effect on the electronic structure of the heme in the low-spin, ferric cyanide complex of sperm whale myoglobin, metMbCN, which can be uniquely attributed to an H-bond between the distal (E7) histidyl imidazole and the bound ligand. The perturbation of the heme electronic structure arises directly from the isotope effect of the H bond between the distal His number7 and the bound ligand.

Research Organization:
Univ. of California, Davis (USA)
OSTI ID:
7076510
Journal Information:
J. Am. Chem. Soc.; (United States), Vol. 109:23
Country of Publication:
United States
Language:
English