Results 71 to 80 of about 95,534 (148)

Recent Advances in Enzyme‐based Biofuel Cells Using Glucose Fuel: Achieving High Power Output and Enhanced Operational Stability

Advanced Functional Materials, Volume 35, Issue 16, April 18, 2025.
Effective electron transfer and stable enzyme immobilization, both between enzymes and host electrodes as well as between adjacent enzymes, are crucial for optimizing the biofuel cell (BFC) performance. Recently, efforts have focused on integrating these strategies with porous host electrodes.
Junha Pak, Woojae Chang, Cheong Hoon Kwon, Jinhan Cho   +3 more
wiley   +1 more source

Contrasting Methane, Sulfide and Nitrogen‐Loading Regimes in Bioreactors Shape Microbial Communities Originating From Methane‐Rich Coastal Sediment of the Stockholm Archipelago

Environmental Microbiology, Volume 27, Issue 2, February 2025.
In this study, microbial communities are enriched in brackish anoxic bioreactors with methane, sulfide, nitrate and ammonium. Novel diversity is identified and functionally analysed. ABSTRACT Coastal ecosystems are increasingly exposed to high nutrient loads and salinity intrusions due to rising seawater levels.
Maider J. Echeveste Medrano, Garrett J. Smith, Irene Sánchez‐Andrea, Mike S. M. Jetten, Cornelia U. Welte   +4 more
wiley   +1 more source

Unveiling the Broad Substrate Specificity of Deoxynivalenol Oxidation Enzyme DepA and Its Role in Detoxifying Trichothecene Mycotoxins

Toxins
DepA, a pyrroloquinoline quinone (PQQ)-dependent enzyme isolated from Devosia mutans 17-2-E-8, exhibits versatility in oxidizing deoxynivalenol (DON) and its derivatives.
Yan Zhu, Edicon Tze Shun Chan, Nadine Abraham, Xiu-Zhen Li, Weijun Wang, Lili Mats, Honghui Zhu, Jason Carere, Ting Zhou   +8 more
doaj   +1 more source

Engineered Passive Glucose Uptake in Pseudomonas taiwanensis VLB120 Increases Resource Efficiency for Bioproduction

Microbial Biotechnology, Volume 18, Issue 1, January 2025.
In this study, we heterologously expressed the energy‐independent glucose facilitator protein (Glf) from Zymomonas mobilis to replace the native energy‐demanding glucose transport systems, thereby increasing the metabolic energy efficiency. Implementation of passive glucose uptake in engineered production strains significantly increased product titres ...
Tobias Schwanemann, Nicolas Krink, Pablo I. Nikel, Benedikt Wynands, Nick Wierckx   +4 more
wiley   +1 more source

Methods for Expression, Purification, and Characterization of PqqE, a Radical SAM Enzyme in the PQQ Biosynthetic Pathway

Methods in Enzymology, 2018
PqqE is the first enzyme in the biosynthetic pathway of the redox cofactor pyrroloquinoline quinone (PQQ), catalyzing the formation of a carbon–carbon bond in the precursor peptide PqqA.
Wen Zhu, A. M. Martins, J. Klinman
semanticscholar   +1 more source

Eliciting Clavulanic Acid Biosynthesis: The Impact of Bacillus velezensis FZB42 on the Metabolism of Streptoyces clavuligerus ATCC 27064

Metabolites
Background/Objectives: Clavulanic acid (CA) is produced by cell suspension cultures of Streptomyces clavuligerus ATCC 27064, and is widely used as a beta-lactamase inhibitor to combat antibiotic resistance.
Luisa F. Patiño, Carlos Caicedo-Montoya, Laura Pinilla-Mendoza, Jaison H. Cuartas, Rigoberto Ríos-Estepa   +4 more
doaj   +1 more source

Electrochemistry of Pyrroloquinoline Quinone (PQQ) on Multi-Walled Carbon Nanotube-Modified Glassy Carbon Electrodes in Biological Buffers

, 2017
Pyrroloquinoline quinone (PQQ) is an important electrocatalyst and redox cofactor for many enzymes used in bioanalytical appli- cations. Careful selection of electrode modifications and buffer compositions is required due to PQQ’s tendency to be ...
Ismaila Emahi, Michael P. Mitchell, Dana A. Baum   +2 more
semanticscholar   +1 more source

Characteristic Reaction Mode of Cofactor PQQ toward Nucleophiles

Characteristic Reaction Mode of Cofactor PQQ toward Nucleophiles
[Abstract] The characteristic reaction mode of coenzyme PQQ toward nucleophiles such as alcohols, amines, and hydrazines are surveyed. The selectivity of addition position of nucleophiles to the carbonyl group of PQQ was affected by reaction conditions and substituents of nucleophiles. Reaction mechanisms were discussed.
openaire  

Chemical Proteomics Reveal the Inventory of Pyrroloquinoline Quinone Binding Proteins in Bacteria. [PDF]

J Am Chem Soc
Wang T, Mühlhofer R, Lei E, Ding W, Klein AS, Zeymer C, Sieber SA.   +6 more
europepmc   +1 more source

Optimization of Culture Conditions for Pyrroloquinoline Quinone-Overproducing Mutant <i>Hyphomicrobium denitrificans</i> and Its Skin Bioactive Properties. [PDF]

J Microbiol Biotechnol
Lee J, Hwang H, Kim G, Hinterdorfer P, Song S, Ko K.   +5 more
europepmc   +1 more source