Designing artificial metalloenzymes by tuning of the environment beyond the primary coordination sphere

C Van Stappen, Y Deng, Y Liu, H Heidari… - Chemical …, 2022 - ACS Publications
Metalloenzymes catalyze a variety of reactions using a limited number of natural amino
acids and metallocofactors. Therefore, the environment beyond the primary coordination …

Synthetic Fe/Cu complexes: toward understanding heme-copper oxidase structure and function

SM Adam, GB Wijeratne, PJ Rogler, DE Diaz… - Chemical …, 2018 - ACS Publications
Heme-copper oxidases (HCOs) are terminal enzymes on the mitochondrial or bacterial
respiratory electron transport chain, which utilize a unique heterobinuclear active site to …

Jaagsiekte sheep retrovirus is necessary and sufficient to induce a contagious lung cancer in sheep

M Palmarini, JM Sharp, M de las Heras… - Journal of virology, 1999 - Am Soc Microbiol
Sheep pulmonary adenomatosis (SPA) is a contagious and experimentally transmissible
lung cancer of sheep resembling human bronchiolo-alveolar carcinoma. A type D retrovirus …

[HTML][HTML] From random to rational: improving enzyme design through electric fields, second coordination sphere interactions, and conformational dynamics

SS Chaturvedi, D Bím, CZ Christov… - Chemical Science, 2023 - pubs.rsc.org
Enzymes are versatile and efficient biological catalysts that drive numerous cellular
processes, motivating the development of enzyme design approaches to tailor catalysts for …

[HTML][HTML] Effects of the location of distal histidine in the reaction of myoglobin with hydrogen peroxide

T Matsui, S Ozaki, E Liong, GN Phillips… - Journal of Biological …, 1999 - ASBMB
To clarify how the location of distal histidine affects the activation process of H 2 O 2 by
heme proteins, we have characterized reactions with H 2 O 2 for the L29H/H64L and …

Mechanisms of sulfoxidation catalyzed by high-valent intermediates of heme enzymes: electron-transfer vs oxygen-transfer mechanism

Y Goto, T Matsui, S Ozaki, Y Watanabe… - Journal of the …, 1999 - ACS Publications
Mechanisms of sulfoxidation catalyzed by high-valent intermediates of heme enzymes have
been investigated by direct observation of sulfide-induced reduction of three different …

[HTML][HTML] Reaction of haem containing proteins and enzymes with hydroperoxides: the radical view

DA Svistunenko - Biochimica et Biophysica Acta (BBA)-Bioenergetics, 2005 - Elsevier
The reaction between hydroperoxides and the haem group of proteins and enzymes is
important for the function of many enzymes but has also been implicated in a number of …

Reactivities of oxo and peroxo intermediates studied by hemoprotein mutants

Y Watanabe, H Nakajima, T Ueno - Accounts of chemical …, 2007 - ACS Publications
A series of myoglobin mutants, in which distal sites are modified by site-directed
mutagenesis, are able to catalyze peroxidase, catalase, and P450 reactions even though …

In vitro evolution of horse heart myoglobin to increase peroxidase activity

L Wan, MB Twitchett, LD Eltis… - Proceedings of the …, 1998 - National Acad Sciences
Random mutagenesis and screening for enzymatic activity has been used to engineer horse
heart myoglobin to enhance its intrinsic peroxidase activity. A chemically synthesized gene …

Evidence for the participation of two distinct reactive intermediates in iron (III) porphyrin complex-catalyzed epoxidation reactions

W Nam, MH Lim, HJ Lee, C Kim - Journal of the American …, 2000 - ACS Publications
We have studied the competitive epoxidations of olefins with cis-and trans-stilbenes and
with cyclooctene and trans-stilbene in iron porphyrin complex-catalyzed epoxidation …