Proximal Cavity, Distal Histidine, and Substrate Hydrogen-Bonding Mutations Modulate the Activity of Amphitrite ornata Dehaloperoxidase
Franzen, S., Belyea, J., Gilvey, L. B., Davis, M. F., Chaudhary, C. E., Sit, T. L., & Lommel, S. A. (2006, July 7). Biochemistry, Vol. 45, pp. 9085–9094.
MeSH headings : Animals; Binding Sites / genetics; Hemoglobins; Histidine / chemistry; Histidine / genetics; Hydrogen Bonding; Mutagenesis, Site-Directed; Peroxidases / chemistry; Peroxidases / genetics; Peroxidases / metabolism; Phenylalanine / genetics; Polychaeta / enzymology; Polychaeta / genetics; Substrate Specificity / genetics; Tyrosine / genetics; Valine / genetics
topics (OpenAlex): Hemoglobin structure and function; Heme Oxygenase-1 and Carbon Monoxide; Erythrocyte Function and Pathophysiology
TL;DR:
The role of tyrosine 38 (Y38), which hydrogen bonds to the hydroxyl group of the substrate, was probed and it was suggested that abolishing this hydrogen bond may open a pathway for the escape of the one-electron product, the phenoxy radical leading to polymeric products.
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14. Life Below Water
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