Fantastic [FeFe]-hydrogenases and where to find them

S Morra - Frontiers in Microbiology, 2022 - frontiersin.org
[FeFe]-hydrogenases are complex metalloenzymes, key to microbial energy metabolism in
numerous organisms. During anaerobic metabolism, they dissipate excess reducing …

Molecular hydrogen metabolism: a widespread trait of pathogenic bacteria and protists

SL Benoit, RJ Maier, RG Sawers… - … and Molecular Biology …, 2020 - Am Soc Microbiol
Pathogenic microorganisms use various mechanisms to conserve energy in host tissues
and environmental reservoirs. One widespread but often overlooked means of energy …

Genetic engineering contribution to developing cyanobacteria-based hydrogen energy to reduce carbon emissions and establish a hydrogen economy

GK Kamshybayeva, BD Kossalbayev… - International Journal of …, 2024 - Elsevier
Growing concerns over greenhouse gas emissions and energy insecurity caused by the
depletion of conventional fuels have led to a search for sustainable fuel alternatives. As an …

Oxygen Stability in the New [FeFe]-Hydrogenase from Clostridium beijerinckii SM10 (CbA5H)

S Morra, M Arizzi, F Valetti, G Gilardi - Biochemistry, 2016 - ACS Publications
The newly isolated Clostridium beijerinckii [FeFe]-hydrogenase CbA5H was characterized
by Fourier transform infrared spectroscopy coupled to enzymatic activity assays. This …

NADH-based kinetic model for acetone-butanol-ethanol production by Clostridium

JC Quintero-Díaz, DF Mendoza… - … in Bioengineering and …, 2023 - frontiersin.org
We present in this work a kinetic model of the acetone-butanol-ethanol (ABE) fermentation
based on enzyme kinetics expressions. The model includes the effect of the co-substrate …

Improving sustainable hydrogen production from green waste:[FeFe]-hydrogenases quantitative gene expression RT-qPCR analysis in presence of autochthonous …

M Arizzi, S Morra, G Gilardi, M Pugliese… - Biotechnology for …, 2021 - Springer
Background Bio-hydrogen production via dark fermentation of low-value waste is a potent
and simple mean of recovering energy, maximising the harvesting of reducing equivalents to …

[FeFe]-Hydrogenase Encapsulated in Zeolitic Imidazolate Framework (ZIF)-8 Nanoparticles as a Robust Biocatalyst for Photocatalytic Hydrogen Production

N Kosem, Y Ohsaki, M Watanabe… - ACS Sustainable …, 2024 - ACS Publications
[FeFe]-hydrogenase (HydA) is an active biocatalytic enzyme for solar-to-hydrogen (H2)
conversion. However, stability is a main challenge that limits practical applications. This …

Hydrogen production at high Faradaic efficiency by a bio-electrode based on TiO2 adsorption of a new [FeFe]-hydrogenase from Clostridium perfringens

S Morra, F Valetti, V Sarasso, S Castrignanò… - …, 2015 - Elsevier
Abstract The [FeFe]-hydrogenase CpHydA from Clostridium perfringens was immobilized by
adsorption on anatase TiO 2 electrodes for clean hydrogen production. The immobilized …

The effect of a C298D mutation in CaHydA [FeFe]-hydrogenase: Insights into the protein-metal cluster interaction by EPR and FTIR spectroscopic investigation

S Morra, S Maurelli, M Chiesa, DW Mulder… - … et Biophysica Acta (BBA …, 2016 - Elsevier
A conserved cysteine located in the signature motif of the catalytic center (H-cluster) of
[FeFe]-hydrogenases functions in proton transfer. This residue corresponds to C298 in …

Oxygen-resistant [FeFe] hydrogenases: new biocatalysis tools for clean energy and cascade reactions

F Valetti, S Morra, L Barbieri, S Dezzani, A Ratto… - Faraday …, 2024 - pubs.rsc.org
The use of enzymes to generate hydrogen, instead of using rare metal catalysts, is an
exciting area of study in modern biochemistry and biotechnology, as well as biocatalysis …