Results 91 to 100 of about 28,371 (199)

Pyrroloquinoline-quinone synthesized in Escherichia coli by pyrroloquinoline-quinone synthase of Deinococcus radiodurans plays a role beyond mineral phosphate solubilization

open access: yes, 2003
Deinococcus radiodurans, an extremely radioresistant bacterium, synthesizes coenzyme pyrroloquinoline-quinone (PQQ) but exhibits a negative phenotype for mineral phosphate solubilization.
Apte, Shree K.   +2 more
core   +1 more source

Targeting Multilayered Metabolic Networks in Brain Diseases: Emerging Perspectives on Nanodelivery Strategies

open access: yesAdvanced Science, Volume 12, Issue 41, November 6, 2025.
Brain diseases involve multilayered metabolic disruptions that reshape cellular interactions and microenvironments. This review outlines core metabolic features across disease states and presents emerging nanodelivery strategies as precision tools to reprogram pathological metabolism.
Jingyi Zhou, Chen Jiang
wiley   +1 more source

Discovery of Hydroxylase Activity for PqqB Provides a Missing Link in the Pyrroloquinoline Quinone Biosynthetic Pathway [PDF]

open access: yes, 2019
Understanding the biosynthesis of cofactors is fundamental to the life sciences, yet to date a few important pathways remain unresolved. One example is the redox cofactor pyrroloquinoline quinone (PQQ), which is critical for C1 metabolism in many ...
Robert L. Evans   +35 more
core   +1 more source

Pyrolyzed Walnut Shell‐Based Flexible Electrodes for Magnetically Triggered ON/OFF DNA Release

open access: yesAdvanced NanoBiomed Research, Volume 5, Issue 10, October 2025.
A magnetically actuated DNA release system using walnut shell‐derived electrodes enables ON/OFF switching of electron transfer by controlling DNA hybridization with magnetic beads. A magnetically gated, enzymatically driven DNA release platform based on sustainable pyrolyzed walnut shell‐derived carbon electrodes is reported.
Paolo Bollella   +5 more
wiley   +1 more source

Complex and Charge Transfer between TiO2 and Pyrroloquinoline Quinone†

open access: yes, 2016
Pyrroloquinoline quinone (PQQ) forms a tridentate complex with coordinatively unsaturated titanium atoms on the surface of ∼4.5 nm TiO2 particles; an association constant of K = 550 M-1 per Ti(IV)surf has been determined.
Nada M. Dimitrijevic (1275396)   +3 more
core   +1 more source

Wired Pyrroloquinoline Quinone Soluble Glucose Dehydrogenase Enzyme Electrodes Operating at Unprecedented Low Redox Potential

open access: yes, 2014
We report unprecedented high current densities for the enzymatic oxidation of glucose already at 0 V versus Ag/AgCl. The modified electrodes were made by assembling pyrroloquinoline quinone (PQQ)-soluble glucose dehydrogenase (PQQ-sGDH) from ...
MANO, Nicolas, FLEXER, Victoria
core   +1 more source

The Earlier the Better: Structural Analysis and Separation of Lanthanides with Pyrroloquinoline Quinone [PDF]

open access: yes, 2020
Lanthanides (Ln) are critical raw materials, however, their mining and purification have a considerable negative environmental impact and sustainable recycling and separation strategies for these elements are needed.
Menke, A.   +32 more
core   +1 more source

Role of Two Methanol Dehydrogenases in Methanol Metabolism of Methylobacterium

open access: yesShipin gongye ke-ji
In this study, the pyrroloquinoline quinone (PQQ) high-yield mutant J1-1 of Methylobacterium glucophilum MP688 was used to do bioinformatics analysis to extract the two methanol dehydrogenase (MDH) genes from the genome, mpq0771 and mpq2496.
Yaqing GUO   +5 more
doaj   +1 more source

TC and H NMR studies of PQQ and selected derivatives. [Pyrroloquinoline quinone]

open access: yes, 1988
The ortho-quinone structure of pyrroloquinoline quinone (PQQ) is famous for its reactivity with nucleophilic species of carbon, nitrogen, and oxygen(Duine et. al. 1987).
Houck, D.R., Unkefer, C.J.
core  

The interaction of aminogroups with pyrroloquinoline quinone as detected by the reduction of nitroblue tetrazolium.

open access: yes, 1988
The interaction of pyrroloquinoline quinone (PQQ) with amino groups was followed by measuring the capacity of adducts to reduce nitroblue tetrazolium (NBT). Of the natural amino acids only glycine, ornithine, and lysine interacted strongly with PQQ.
Flückiger R, Woodtli T, Gallop PM
core   +1 more source

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