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J Inorg Biochem. 2022 Jan;226:111630. doi: 10.1016/j.jinorgbio.2021.111630. Epub 2021 Oct 16.

Influence of heme propionates on the nitrite reductase activity of myoglobin.

Journal of inorganic biochemistry

Mary Grace I Galinato, Aaron M Trail, Olivia R Steinbeck, Zhuoyan Si, Anthony M Rodland, Jaclyn Gowen

Affiliations

  1. School of Science-Chemistry, Penn State Behrend, Erie, PA 16563, United States of America. Electronic address: [email protected].
  2. School of Science-Chemistry, Penn State Behrend, Erie, PA 16563, United States of America.

PMID: 34688205 DOI: 10.1016/j.jinorgbio.2021.111630

Abstract

The heme propionates in myoglobin (Mb) form a H-bonding network among several residues within its second-sphere coordination, providing a key structural role towards Mb's functional properties. Our work aims to understand the role of the heme propionates on the nitrite reductase (NiR) activity (e.g. reduction of NO

Copyright © 2021 Elsevier Inc. All rights reserved.

Keywords: Electrostatics; Esterification; Heme; Kinetics; Myoglobin; Nitrite

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