Interactions of iron, dopamine and neuromelanin pathways in brain aging and Parkinson's disease

FA Zucca, J Segura-Aguilar, E Ferrari, P Muñoz… - Progress in …, 2017 - Elsevier
There are several interrelated mechanisms involving iron, dopamine, and neuromelanin in
neurons. Neuromelanin accumulates during aging and is the catecholamine-derived …

Protein design: toward functional metalloenzymes

F Yu, VM Cangelosi, ML Zastrow, M Tegoni… - Chemical …, 2014 - ACS Publications
Protein design is a valuable tool for understanding the fundamental factors that dictate
protein structure and function. The field of protein design has seen significant progress over …

[HTML][HTML] Ribonucleotide reductases: essential enzymes for bacterial life

E Torrents - Frontiers in cellular and infection microbiology, 2014 - frontiersin.org
Ribonucleotide reductase (RNR) is a key enzyme that mediates the synthesis of
deoxyribonucleotides, the DNA precursors, for DNA synthesis in every living cell. This …

[HTML][HTML] Computational modelling of oxygenation processes in enzymes and biomimetic model complexes

SP de Visser, MG Quesne, B Martin… - Chemical …, 2014 - pubs.rsc.org
With computational resources becoming more efficient and more powerful and at the same
time cheaper, computational methods have become more and more popular for studies on …

Copper reductase activity and free radical chemistry by cataract-associated human lens γ-crystallins

G Palomino-Vizcaino, N Schuth… - Journal of the …, 2023 - ACS Publications
Cataracts are caused by high-molecular-weight aggregates of human eye lens proteins that
scatter light, causing lens opacity. Metal ions have emerged as important potential players in …

Mechanism of assembly of the dimanganese-tyrosyl radical cofactor of class Ib ribonucleotide reductase: enzymatic generation of superoxide is required for tyrosine …

JA Cotruvo Jr, TA Stich, RD Britt… - Journal of the American …, 2013 - ACS Publications
Ribonucleotide reductases (RNRs) utilize radical chemistry to reduce nucleotides to
deoxynucleotides in all organisms. In the class Ia and Ib RNRs, this reaction requires a …

New iminodiacetate–thiosemicarbazone hybrids and their copper (II) complexes are potential ribonucleotide reductase R2 inhibitors with high antiproliferative activity

MF Zaltariov, M Hammerstad, HJ Arabshahi… - Inorganic …, 2017 - ACS Publications
As ribonucleotide reductase (RNR) plays a crucial role in nucleic acid metabolism, it is an
important target for anticancer therapy. The thiosemicarbazone Triapine is an efficient R2 …

Experimental and Computational X-ray Emission Spectroscopy as a Direct Probe of Protonation States in Oxo-Bridged MnIV Dimers Relevant to Redox-Active …

B Lassalle-Kaiser, TT Boron III, V Krewald… - Inorganic …, 2013 - ACS Publications
The protonation state of oxo bridges in nature is of profound importance for a variety of
enzymes, including the Mn4CaO5 cluster of photosystem II and the Mn2O2 cluster in Mn …

Direct observation of structurally encoded metal discrimination and ether bond formation in a heterodinuclear metalloprotein

JJ Griese, K Roos, N Cox, HS Shafaat… - Proceedings of the …, 2013 - National Acad Sciences
Although metallocofactors are ubiquitous in enzyme catalysis, how metal binding specificity
arises remains poorly understood, especially in the case of metals with similar primary …

[HTML][HTML] Involvement of high-valent manganese-oxo intermediates in oxidation reactions: realisation in nature, nano and molecular systems

M Balamurugan, N Saravanan, H Ha, YH Lee… - Nano …, 2018 - Springer
Manganese plays multiple role in many biological redox reactions in which it exists in
different oxidation states from Mn (II) to Mn (IV). Among them the high-valent manganese …