Results 41 to 50 of about 28,371 (199)

Bioelectrocatalytic activity of reconstituted peroxidase on hemin-terminated PQQ-modified electrodes

open access: yesSensors and Actuators Reports, 2022
Efficient direct electrical communication between an enzyme redox center and an electrode is of great interest from the viewpoints of application to reagentless biosensors and biofuel cells.
Kikuo Komori, Tomoki Aikawa
doaj   +1 more source

Evidence for a membrane-bound pyrroloquinoline quinone-linked glucose dehydrogenase in Acetobacter diazotrophicus [PDF]

open access: yes, 2022
Acetobacter diazotrophicus possesses a pyrroloquinoline quinone-linked glucose dehydrogenase (PQQ-GDH). The enzyme seemingly belongs to the type II PQQ-GDH enzymes and, at least under the culture conditions tested, the organism synthesizes enough PQQ to ...
Galar, María Lina, Boiardi, José Luis
core  

DETECTION METHOD OF PYRROLOQUINOLINE QUINONE (PQQ) AND PQQ-ADDUCTS BY ISOTACHOPHORESIS

open access: yesAnalytical Sciences, 1991
New detection method of pyrroloquinoline quinone (PQQ) and PQQ-adducts has been developed by isotachophoresis using a UV and a potential gradient detectors. The detection limits of free PQQ and PQQ-acetone adduct were about 0.1μM in the sample injection of 10μl.
GOTO, MASASHI   +4 more
openaire   +2 more sources

Biogenesis of the peptide-derived redox cofactor pyrroloquinoline quinone

open access: yes, 2020
Pyrroloquinoline quinone (PQQ) is a peptide-derived redox cofactor produced by prokaryotes that also plays beneficial roles in organisms from other kingdoms.
Zhu, Wen, Klinman, Judith P
core   +1 more source

Evidence for a membrane-bound pyrroloquinoline quinone-linked glucose dehydrogenase in Acetobacter diazotrophicus [PDF]

open access: yes, 1995
Acetobacter diazotrophicus possesses a pyrroloquinoline quinone-linked glucose dehydrogenase (PQQ-GDH). The enzyme seemingly belongs to the type II PQQ-GDH enzymes and, at least under the culture conditions tested, the organism synthesizes enough PQQ to ...
Galar, María Lina, Boiardi, José Luis
core   +1 more source

Pyrroloquinoline Quinone Protects SMA560 Astrocytes Against Thrombin-Induced Cell Death by Improving Mitochondrial Function

open access: yesNatural Product Communications, 2022
Thrombin activation after cerebral hemorrhage induces the death of neurons and astrocytes. Pyrroloquinoline quinone (PQQ) shows nutritional functions and cell protection.
Xi Xu   +5 more
doaj   +1 more source

Pyrroloquinoline quinone inhibits PCSK9-NLRP3 mediated pyroptosis of Leydig cells in obese mice

open access: yesCell Death and Disease, 2023
Abnormal lipid metabolism and chronic low-grade inflammation are the main traits of obesity. Especially, the molecular mechanism of concomitant deficiency in steroidogenesis-associated enzymes related to testosterone (T) synthesis of obesity dominated a ...
Jinyuan Wang   +21 more
doaj   +1 more source

Structure of pyrroloquinoline quinone (PQQ).

open access: yes, 2018
Structure of pyrroloquinoline quinone (PQQ).
Tsuyoshi Mikekado (6111500)   +6 more
core   +1 more source

Effects of Pyrroloquinoline Quinone (PQQ) and Coenzyme Q10 on mitochondrial genes, MitomiRs and cellular properties in HEPG2 cell line [PDF]

open access: yes, 2023
Çalışmamız, hepatosellüer karsinom hücre hattı HepG2’de Koenzim Q10 (CoQ10) ve Pirolokinolin Kinon (PQQ)’un antioksidan metabolizma (Oksidatif Stres), inflamatuvar yanıt, mitokondriyal biyogenez ve mitokondriyal disfonksiyon gibi özellikler üzerine ...
Nalbant, Muhammed Ali
core   +3 more sources

Pyrroloquinoline quinone modulates YAP-related anti-ferroptotic activity to protect against myocardial hypertrophy

open access: yesFrontiers in Pharmacology, 2022
Background: Pyrroloquinoline quinone (PQQ) has been reported to exhibit cardioprotective and antioxidant activities. Accordingly, this study was developed to explore the effects of PQQ treatment on myocardial hypertrophy and the underlying mechanism of ...
Jiabin Zhou   +14 more
doaj   +1 more source

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