Ribonucleotide reductases: structure, chemistry, and metabolism suggest new therapeutic targets

BL Greene, G Kang, C Cui, M Bennati… - Annual review of …, 2020 - annualreviews.org
Ribonucleotide reductases (RNRs) catalyze the de novo conversion of nucleotides to
deoxynucleotides in all organisms, controlling their relative ratios and abundance. In doing …

Regulation and distinct physiological roles of manganese in bacteria

EF Bosma, MH Rau, LA van Gijtenbeek… - FEMS Microbiology …, 2021 - academic.oup.com
ABSTRACT Manganese (Mn2+) is an essential trace element within organisms spanning
the entire tree of life. In this review, we provide an overview of Mn2+ transport and the …

Mysteries of metals in metalloenzymes

CE Valdez, QA Smith, MR Nechay… - Accounts of chemical …, 2014 - ACS Publications
Conspectus Natural metalloenzymes are often the most proficient catalysts in terms of their
activity, selectivity, and ability to operate at mild conditions. However, metalloenzymes are …

Manganese homeostasis and utilization in pathogenic bacteria

LJ Juttukonda, EP Skaar - Molecular microbiology, 2015 - Wiley Online Library
Manganese (M n) is a required cofactor for all forms of life. Given the importance of M n to
bacteria, the host has devised strategies to sequester M n from invaders. In the macrophage …

The periodic table of ribonucleotide reductases

TB Ruskoski, AK Boal - Journal of Biological Chemistry, 2021 - ASBMB
In most organisms, transition metal ions are necessary cofactors of ribonucleotide reductase
(RNR), the enzyme responsible for biosynthesis of the 2′-deoxynucleotide building blocks …

Manganese and microbial pathogenesis: sequestration by the Mammalian immune system and utilization by microorganisms

MB Brophy, EM Nolan - ACS chemical biology, 2015 - ACS Publications
Bacterial and fungal pathogens cause a variety of infectious diseases and constitute a
significant threat to public health. The human innate immune system represents the first line …

Redox-controlled reorganization and flavin strain within the ribonucleotide reductase R2b–NrdI complex monitored by serial femtosecond crystallography

J John, O Aurelius, V Srinivas, P Saura, IS Kim… - Elife, 2022 - elifesciences.org
Redox reactions are central to biochemistry and are both controlled by and induce protein
structural changes. Here, we describe structural rearrangements and crosstalk within the …

Metal-free class Ie ribonucleotide reductase from pathogens initiates catalysis with a tyrosine-derived dihydroxyphenylalanine radical

EJ Blaesi, GM Palowitch, K Hu… - Proceedings of the …, 2018 - National Acad Sciences
All cells obtain 2′-deoxyribonucleotides for DNA synthesis through the activity of a
ribonucleotide reductase (RNR). The class I RNRs found in humans and pathogenic …

Why is manganese so valuable to bacterial pathogens?

J Čapek, B Večerek - Frontiers in Cellular and Infection Microbiology, 2023 - frontiersin.org
Apart from oxygenic photosynthesis, the extent of manganese utilization in bacteria varies
from species to species and also appears to depend on external conditions. This …

Manganese uptake and streptococcal virulence

BA Eijkelkamp, CA McDevitt, T Kitten - Biometals, 2015 - Springer
Streptococcal solute-binding proteins (SBPs) associated with ATP-binding cassette
transporters gained widespread attention first as ostensible adhesins, next as virulence …