User profiles for Akihiro Okamotao

Akihiro Okamoto

National Institute for Materials Science
Cited by 3755

Dual substrate recognition of aminotransferases

K Hirotsu, M Goto, A Okamoto… - The Chemical Record, 2005 - Wiley Online Library
Pyridoxal 5′‐phosphate‐dependent aminotransferases reversibly catalyzes the transamination
reaction in which the α‐amino group of amino acid 1 is transferred to the 2‐oxo acid of …

Thermal Hall effect of magnons

S Murakami, A Okamoto - Journal of the Physical Society of Japan, 2017 - journals.jps.jp
We review recent developments in theories and experiments on the magnon Hall effect. We
derive the thermal Hall conductivity of magnons in terms of the Berry curvature of magnonic …

Interkingdom microbial consortia mechanisms to guide biotechnological applications

S Zhang, N Merino, A Okamoto… - Microbial …, 2018 - Wiley Online Library
Microbial consortia are capable of surviving diverse conditions through the formation of
synergistic population‐level structures, such as stromatolites, microbial mats and biofilms. …

Rate enhancement of bacterial extracellular electron transport involves bound flavin semiquinones

A Okamoto, K Hashimoto… - Proceedings of the …, 2013 - National Acad Sciences
Extracellular redox-active compounds, flavins and other quinones, have been hypothesized
to play a major role in the delivery of electrons from cellular metabolic systems to …

[PDF][PDF] Self‐constructed electrically conductive bacterial networks

R Nakamura, F Kai, A Okamoto, GJ Newton… - Angewandte …, 2009 - tissueeng.net
Microbial attachment to mineral surfaces is a fundamental process for initiating a broad range
of biochemical and geological events in a natural environment.[1] The genus Shewanella,[…

[HTML][HTML] FeGenie: a comprehensive tool for the identification of iron genes and iron gene neighborhoods in genome and metagenome assemblies

AI Garber, KH Nealson, A Okamoto… - Frontiers in …, 2020 - frontiersin.org
Iron is a micronutrient for nearly all life on Earth. It can be used as an electron donor and
electron acceptor by iron-oxidizing and iron-reducing microorganisms and is used in a variety of …

[HTML][HTML] Redesigning the substrate specificity of an enzyme by cumulative effects of the mutations of non-active site residues

S Oue, A Okamoto, T Yano, H Kagamiyama - Journal of Biological …, 1999 - ASBMB
Directed evolution was used to change the substrate specificity of aspartate aminotransferase.
A mutant enzyme with 17 amino acid substitutions was generated that shows a 2.1 × 10 6 -…

[HTML][HTML] Uptake of self-secreted flavins as bound cofactors for extracellular electron transfer in Geobacter species

A Okamoto, K Saito, K Inoue, KH Nealson… - Energy & …, 2014 - pubs.rsc.org
Geobacter species are among the most efficient current-producing bacterial species, yet their
electron-transfer mechanisms have been scarcely investigated at the molecular level. Here…

Design of all-inorganic molecular-based photocatalysts sensitive to visible light: Ti (IV)− O− Ce (III) bimetallic assemblies on mesoporous silica

R Nakamura, A Okamoto, H Osawa, H Irie… - Journal of the …, 2007 - ACS Publications
The first photocatalysis operated by the visible-light induced metal-to-metal charge transfer (MMCT)
has been demonstrated for the Ti(IV)/Ce(III) bimetallic assemblies synthesized on …

[HTML][HTML] Cell-secreted flavins bound to membrane cytochromes dictate electron transfer reactions to surfaces with diverse charge and pH

A Okamoto, S Kalathil, X Deng, K Hashimoto… - Scientific reports, 2014 - nature.com
The variety of solid surfaces to and from which microbes can deliver electrons by extracellular
electron transport (EET) processes via outer-membrane c-type cytochromes (OM c-Cyts) …