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Hydrogen Bonding Modulates Binding of Exogenous Ligands in a Myoglobin Proximal Cavity Mutant
Alanine Amino Acid Substitution Animals Binding Sites Glycine Histidine Hydrogen Bonding Imidazoles Ligands Macromolecular Substances Metmyoglobin Models, Chemical Mutagenesis, Insertional Myoglobin Nitric Oxide Nuclear Magnetic Resonance,Biomolecular Protons Serine Threonine Whales
2016/5/23
In the sperm whale myoglobin mutant H93G, the proximal histidine is replaced by glycine, leaving a cavity in which exogenous imidazole can bind and ligate the heme iron (Barrick, D. (1994) Biochemistr...