Results 101 to 110 of about 3,727 (217)

Soybean lipoxygenases-1, -2a, -2b and -2c do not contain PQQ.

open access: yes, 1990
International audienceSoybean isoenzymes lipoxygenases-1, -2a, -2b and -2c were examined spectroscopically for the presence of covalently bound pyrrolo quinoline quinone (PQQ) after derivatization by phenylhydrazine (PH), 2,4-dinitrophenylhydrazine (DNPH)
Ullrich, V.   +6 more
core   +1 more source

Synthesis of PQQ Adducts andReconstitution Studies with sGDH.

open access: yes, 2000
Soluble glucose dehydrogenase (sGDH) is a homodimeric quinoprotein found in Acinetobacter calcoaceticus , that effectively catalyzes the oxidation of aldose sugars to their corresponding aldonolactones, for example, glucose to gluconolactone.
Cheung, Sum
core  

Pyrroloquinoline quinone promotes human mesenchymal stem cell-derived mitochondria to improve premature ovarian insufficiency in mice through the SIRT1/ATM/p53 pathway

open access: yesStem Cell Research & Therapy
Background DNA damage and oxidative stress induced by chemotherapy are important factors in the onset of premature ovarian insufficiency (POI). Studies have shown that mitochondria derived from mesenchymal stem cells (MSC-Mito) are beneficial for age ...
Shengjie Liu   +5 more
doaj   +1 more source

Evidence for PQQ as cofactor in 3,4-dihydroxyphenylalanine (dopa) decarboxylase of pig kidney

open access: yes, 1988
Pig kidney 3,4-dihydroxyphenylalanine (dopa) decarboxylase (EC 4.1.1.28) was purified to homogeneity. Treatment of the enzyme with phenylhydrazine (PH) according to a procedure developed for analysis of quinoproteins gave products which were identified ...
Groen, Barend W.   +5 more
core   +1 more source

Direct Bioelectrocatalysis via Interdomain Electron Transfer of Fungal Pyrroloquinoline Quinone-dependent Pyranose Dehydrogenase Depending on the Alkyl Chain Lengths of Self-assembled Monolayers

open access: yesElectrochemistry
Direct electron transfer (DET)-enabled oxidoreductase has been utilized to develop mediator-free bioelectronic devices. Fungal pyrroloquinoline quinone-dependent dehydrogenase from Coprinopsis cinerea is an attractive quinohemoprotein in which the ...
Kota TAKEDA   +4 more
doaj   +1 more source

PQQ suppresses RACK1 expression in activated HSCs by inhibiting NF-κB pathway.

open access: yes, 2015
(A) Liver sections were stained with RACK1 (red) and α-SMA (green) antibodies. Scale bar, 100 μm. (B) Freshly isolated HSCs from different groups of mice were applied to western-blot and qPCR analysis to detect RACK1 expression. (C, D) Primary mouse HSCs
Fangfang Duan (396586)   +5 more
core   +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  

Artificial electron transfer mediators reactivity and application for soluble pqq- dependent glucose dehydrogenase catalysed reactions research.

open access: yes, 2018
Artificial Electron Transfer Mediators Reactivity and Application for Soluble PQQ- Dependent Glucose Dehydrogenase Catalysed Reactions Research Soluble PQQ-dependent glucose dehydrogenase (PQQ-sGDH) exhibits high catalytic activity, insensitivity to ...
Vaitkutė, Greta,
core  

An enzyme catalyzing liberation of pyrroloquinoline quinone(PQQ) from PQQ-adducts.

open access: yesAgricultural and Biological Chemistry, 1990
ADACHI, Osao   +4 more
openaire   +2 more sources

Las quinoproteínas alcohol deshidrogenasas en los sistemas bacterianos: distribución, clasificación, estructura y función

open access: yesTIP Revista Especializada en Ciencias Químico-Biológicas, 2005
Existe una gran diversidad de alcohol deshidrogenasas (ADHs) microbianas; las cuales son divididas en tres grandes grupos: (a) Las que son dependientes de las coenzimas NAD o NADP, (b) Las que son independientes de estas coenzimas; sin embargo ...
Saúl Gómez-Manzo   +3 more
doaj  

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