Results 61 to 70 of about 94,951 (115)

The Crystal Structure of the Catalytic Domain and the Cytochrome b Domain in a Eukaryotic PQQ-Dependent Dehydrogenase.

Applied and Environmental Microbiology, 2019
Pyrroloquinoline quinone (PQQ) was discovered as a redox cofactor of prokaryotic glucose dehydrogenases in the 1960s, and subsequent studies have demonstrated its importance not only in bacterial systems but also in higher organisms.
K. Takeda, T. Ishida, Makoto Yoshida, M. Samejima, H. Ohno, K. Igarashi, N. Nakamura   +6 more
semanticscholar   +1 more source

In Hyphomicrobium denitrificans Two Related Sulfane‐Sulfur Responsive Transcriptional Repressors Regulate Thiosulfate Oxidation and Have a Deep Impact on Nitrate Respiration and Anaerobic Biosyntheses

Molecular Microbiology, Volume 124, Issue 3, Page 204-220, September 2025.
In Hyphomicrobium denitrificans, the use of thiosulfate as a supplemental electron donor is regulated by two homologous sulfane‐sulfur responsive ArsR‐type transcriptional repressors, sHdrR and SoxR, that act cooperatively. Remarkably, the regulation by sHdrR/SoxR extends far beyond sulfur oxidation and deeply affects anaerobic metabolism, particularly
Jingjing Li, Nora E. Schmitte, Kaya Törkel, Christiane Dahl   +3 more
wiley   +1 more source

Efficient Optimization of Gluconobacter oxydans Based on Protein Scaffold-Trimeric CutA to Enhance the Chemical Structure Stability of Enzymes for the Direct Production of 2-Keto-L-gulonic Acid

Journal of Chemistry, 2020
2-Keto-L-gulonic acid (2-KLG), the direct precursor of vitamin C, is produced by a two-step fermentation route from D-sorbitol in industry. However, this route is a complicated mix-culture system which involves three bacteria.
Lili Gao, Yuefeng Liu, Xiaoyu Zhang, Hongsheng Zhang   +3 more
doaj   +1 more source

The Elusive Chemistry of Pyrroloquinoline Quinone Dimethyl Ester Lanthanide Complexes in Biomimetic Alcohol Oxidation

European Journal of Inorganic Chemistry, Volume 28, Issue 24, August 29, 2025.
Biomimetic complexes of lanthanide‐dependent methanol dehydrogenases bearing a pyrroloquinoline quinone dimethyl ester ligand can oxidize alcohols to aldehydes. Spectroscopic studies on the reaction shed light on the mechanism of the reaction and may explain trends observed in the enzyme.
Ioana Ciubotaru, Lisa C. Biener, Violeta A. Vetsova, Patrick Weis, Michael Seitz, Lena J. Daumann   +5 more
wiley   +1 more source

Effects of P limitation and molecules from peanut root exudates on pqqE gene expression and pqq promoter activity in the phosphate-solubilizing strain Serratia sp. S119.

Research in Microbiology, 2017
The mineral phosphate-solubilizing phenotype in bacteria is attributed predominantly to secretion of gluconic acid produced by oxidation of glucose by the glucose dehydrogenase enzyme and its cofactor, pyrroloquinoline quinone.
L. Ludueña, M. S. Anzuay, C. Magallanes-Noguera, M. Tonelli, F. Ibañez, J. Angelini, A. Fabra, M. McIntosh, T. Taurian   +8 more
semanticscholar   +1 more source

Bacterial Nanocellulose: A Sustainable Revolution in Food Science

eFood, Volume 6, Issue 4, August 2025.
Bacterial nanocellulose (BNC), produced via bacterial fermentation, exhibits high mechanical strength, water retention, crystallinity, and transparency, supporting its application in active packaging, functional foods, and environmental remediation. ABSTRACT Bacterial nanocellulose (BNC) is an eco‐friendly biomaterial celebrated for its exceptional ...
Masoud Aman Mohammadi, Adel Mirza Alizadeh, Samira Dakhili, Safa Kooki, Seyede Marzieh Hosseini   +4 more
wiley   +1 more source

Pyrroloquinoline Quinone Mitigates Type 2 Diabetes-Induced Cardiac Injury Through Mitochondrial Quality Control and Inhibition of NLRP3-Dependent Pyroptosis

Metabolites
Background: Pyrroloquinoline quinone (PQQ), a naturally occurring redox cofactor with potent antioxidant and anti-inflammatory properties, has been shown to protect against cardiac injury.
Xue Zhang, Wei Liu, Zhijing Fu, Zhuoling Chen, Qixin Chen, Yanan Shen, Yukai Jin, Dengfeng Xu, Yin Wang, Xuefeng Qu, Yangjunna Zhang   +10 more
doaj   +1 more source

Lanthanide(III)-dependent hydration of the methanol dehydrogenase cofactor, pyrroloquinoline quinone.

Journal of Inorganic Biochemistry
The mechanism by which pyrroloquinoline quinone (PQQ)-dependent methanol dehydrogenases (MDH), bearing either a Ca2+ or a lanthanide (Ln3+) ion in their active site, oxidize methanol has been intensely debated.
C. Blanc, Lauriane Oriol, T. Rajeshkumar, Christian Bijani, C.‐L. Serpentini, N. Giraud, Laurent Maron, Christelle Hureau, Emilie Mathieu   +8 more
semanticscholar   +1 more source

The TonB‐Dependent Transport System Facilitates the Uptake of Inorganic Metal Mediators in Pseudomonas putida KT2440 in a Bioelectrochemical System

Microbial Biotechnology, Volume 18, Issue 8, August 2025.
Mediator‐based extracellular electron transfer in Pseudomonas putida KT2440 relies on the TonB‐dependent system for effective mediator (ferricyanide) transport. Transcriptomic and functional analyses confirmed its key role, while OprF overexpression enhanced membrane permeability and current output. These findings clarify mediator uptake mechanisms and
Anna Weimer, Jens Krömer, Bin Lai, Christoph Wittmann   +3 more
wiley   +1 more source

Recent insights into the biosynthesis and biological activities of the peptide-derived redox cofactor mycofactocin.

Natural product reports (Print)
Covering: 2011 to 2025The importance of redox cofactors like nicotinamide adenine dinucleotide or flavin adenine dinucleotide as cofactors for enzymatic reactions in living organisms is widely known.
Mark Ellerhorst, Vadim Nikitushkin, Walid K. Al-Jammal, Lucas Gregor, Ivan Vilotijević, Gerald Lackner   +5 more
semanticscholar   +1 more source