Heme: emergent roles of heme in signal transduction, functional regulation and as catalytic centres

T Shimizu, A Lengalova, V Martínek… - Chemical Society …, 2019 - pubs.rsc.org
Protoporphyrin IX iron complex (heme) is an important cofactor for oxygen transfer, oxygen
storage, oxygen activation, and electron transfer when bound to the heme proteins …

The nature and reactivity of ferryl heme in compounds I and II

PCE Moody, EL Raven - Accounts of chemical research, 2018 - ACS Publications
Conspectus Aerobic organisms have evolved to activate oxygen from the atmosphere, which
allows them to catalyze the oxidation of different kinds of substrates. This activation of …

Sulfide oxidation by a noncanonical pathway in red blood cells generates thiosulfate and polysulfides

V Vitvitsky, PK Yadav, A Kurthen, R Banerjee - Journal of Biological …, 2015 - ASBMB
A cardioprotectant at low concentrations, H 2 S is a toxin at high concentrations and inhibits
cytochrome c oxidase. A conundrum in H 2 S homeostasis is its fate in red blood cells …

Potentiation of hydrogen peroxide toxicity: From catalase inhibition to stable DNA-iron complexes

T Mahaseth, A Kuzminov - Mutation Research/Reviews in Mutation …, 2017 - Elsevier
Abstract Hydrogen peroxide (H 2 O 2) is unique among general toxins, because it is stable
in abiotic environments at ambient temperature and neutral pH, yet rapidly kills any type of …

Stereochemical Control of Redox CoII/CoIII-Cages with Switchable Cotton Effects Based on Labile-Static States

YL Lu, K Wu, YH Huang, WC Li, ZM Cao… - Journal of the …, 2024 - ACS Publications
The structural dynamics of artificial assemblies, in aspects such as molecular recognition
and structural transformation, provide us with a blueprint to achieve bioinspired applications …

Proposed ligand-centered electrocatalytic hydrogen evolution and hydrogen oxidation at a noninnocent mononuclear metal–thiolate

AZ Haddad, D Kumar, K Ouch Sampson… - Journal of the …, 2015 - ACS Publications
The noninnocent coordinatively saturated mononuclear metal–thiolate complex ReL3 (L=
diphenylphosphinobenzenethiolate) serves as an electrocatalyst for hydrogen evolution or …

Reaction of thiosulfate dehydrogenase with a substrate mimic induces dissociation of the cysteine heme ligand giving insights into the mechanism of oxidative …

LP Jenner, JC Crack, JM Kurth… - Journal of the …, 2022 - ACS Publications
Thiosulfate dehydrogenases are bacterial cytochromes that contribute to the oxidation of
inorganic sulfur. The active sites of these enzymes contain low-spin c-type heme with Cys …

Control of carotenoid biosynthesis through a heme-based cis-trans isomerase

J Beltrán, B Kloss, JP Hosler, J Geng, A Liu… - Nature chemical …, 2015 - nature.com
Plants synthesize carotenoids, which are essential for plant development and survival.
These metabolites also serve as essential nutrients for human health. The biosynthetic …

Functional divergence of heme-thiolate proteins: a classification based on spectroscopic attributes

AT Smith, S Pazicni, KA Marvin, DJ Stevens… - Chemical …, 2015 - ACS Publications
1. INTRODUCTION Heme proteins are among the most versatile players in the biological
milieu; their functions range widely and include electron transfer, catalysis, and small …

A Compact Structure of Cytochrome c Trapped in a Lysine-Ligated State: Loop Refolding and Functional Implications of a Conformational Switch

JF Amacher, F Zhong, GP Lisi, MQ Zhu… - Journal of the …, 2015 - ACS Publications
It has been suggested that the alkaline form of cytochrome c (cyt c) regulates function of this
protein as an electron carrier in oxidative phosphorylation and as a peroxidase that reacts …