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Relevant bibliographies by topics / Catalyse modulable

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Journal articles

Academic literature on the topic 'Catalyse modulable'

Author: Grafiati

Published: 19 April 2025

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Journal articles on the topic "Catalyse modulable"

1

Rodríguez-Ruiz, Marta, Salvador González-Gordo, Amanda Cañas, et al. "Sweet Pepper (Capsicum annuum L.) Fruits Contain an Atypical Peroxisomal Catalase That Is Modulated by Reactive Oxygen and Nitrogen Species." Antioxidants 8, no. 9 (2019): 374. http://dx.doi.org/10.3390/antiox8090374.

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During the ripening of sweet pepper (Capsicum annuum L.) fruits, in a genetically controlled scenario, enormous metabolic changes occur that affect the physiology of most cell compartments. Peroxisomal catalase gene expression decreases after pepper fruit ripening, while the enzyme is also susceptible to undergo post-translational modifications (nitration, S-nitrosation, and oxidation) promoted by reactive oxygen and nitrogen species (ROS/RNS). Unlike most plant catalases, the pepper fruit enzyme acts as a homodimer, with an atypical native molecular mass of 125 to 135 kDa and an isoelectric p

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2

Ilani, Tal, Assaf Alon, Iris Grossman, et al. "A Secreted Disulfide Catalyst Controls Extracellular Matrix Composition and Function." Science 341, no. 6141 (2013): 74–76. http://dx.doi.org/10.1126/science.1238279.

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Disulfide bond formation in secretory proteins occurs primarily in the endoplasmic reticulum (ER), where multiple enzyme families catalyze cysteine cross-linking. Quiescin sulfhydryl oxidase 1 (QSOX1) is an atypical disulfide catalyst, localized to the Golgi apparatus or secreted from cells. We examined the physiological function for extracellular catalysis of de novo disulfide bond formation by QSOX1. QSOX1 activity was required for incorporation of laminin into the extracellular matrix (ECM) synthesized by fibroblasts, and ECM produced without QSOX1 was defective in supporting cell-matrix ad

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3

Ramirez-Ramirez, Joaquin, Javier Martin-Diaz, Nina Pastor, Miguel Alcalde, and Marcela Ayala. "Exploring the Role of Phenylalanine Residues in Modulating the Flexibility and Topography of the Active Site in the Peroxygenase Variant PaDa-I." International Journal of Molecular Sciences 21, no. 16 (2020): 5734. http://dx.doi.org/10.3390/ijms21165734.

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Unspecific peroxygenases (UPOs) are fungal heme-thiolate enzymes able to catalyze a wide range of oxidation reactions, such as peroxidase-like, catalase-like, haloperoxidase-like, and, most interestingly, cytochrome P450-like. One of the most outstanding properties of these enzymes is the ability to catalyze the oxidation a wide range of organic substrates (both aromatic and aliphatic) through cytochrome P450-like reactions (the so-called peroxygenase activity), which involves the insertion of an oxygen atom from hydrogen peroxide. To catalyze this reaction, the substrate must access a channel

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4

Carpena, Xavier, Ben Wiseman, Taweewat Deemagarn, et al. "A molecular switch and electronic circuit modulate catalase activity in catalase‐peroxidases." EMBO reports 6, no. 12 (2005): 1156–62. http://dx.doi.org/10.1038/sj.embor.7400550.

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5

Ochoa, Elba, Wilson Henao, Sara Fuertes, et al. "Synthesis and characterization of a supported Pd complex on carbon nanofibers for the selective decarbonylation of stearic acid to 1-heptadecene: the importance of subnanometric Pd dispersion." Catalysis Science & Technology 10, no. 9 (2020): 2970–85. http://dx.doi.org/10.1039/d0cy00322k.

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Evaluation of the dispersion of Pd active sites on the catalyst performance during fatty acids decarbonylation to α-olefins was explored in this work. Pd subnanometric particles, clusters and aggregates were found to modulate the catalyst activity.

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6

Wang, T. S., Y. F. Shu, Y. C. Liu, K. Y. Jan, and H. Huang. "Glutathione peroxidase and catalase modulate the genotoxicity of arsenite." Toxicology 121, no. 3 (1997): 229–37. http://dx.doi.org/10.1016/s0300-483x(97)00071-1.

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7

Xu, Zheng, So Fun Chau, Kwok Ho Lam, Ho Yin Chan, Tzi Bun Ng, and Shannon W. N. Au. "Crystal structure of the SENP1 mutant C603S–SUMO complex reveals the hydrolytic mechanism of SUMO-specific protease." Biochemical Journal 398, no. 3 (2006): 345–52. http://dx.doi.org/10.1042/bj20060526.

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SUMO (small ubiquitin-related modifier)-specific proteases catalyse the maturation and de-conjugation processes of the sumoylation pathway and modulate various cellular responses including nuclear metabolism and cell cycle progression. The active-site cysteine residue is conserved among all known SUMO-specific proteases and is not substitutable by serine in the hydrolysis reactions demonstrated previously in yeast. We report here that the catalytic domain of human protease SENP1 (SUMO-specific protease 1) mutant SENP1CC603S carrying a mutation of cysteine to serine at the active site is inacti

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8

Sun, He, Mengfan Wang, Xinchuan Du, et al. "Modulating the d-band center of boron doped single-atom sites to boost the oxygen reduction reaction." Journal of Materials Chemistry A 7, no. 36 (2019): 20952–57. http://dx.doi.org/10.1039/c9ta06949f.

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A boron dopant is experimentally and theoretically confirmed to effectively modulate the d-band center of a single-atom catalyst, enabling favorable adsorption kinetics of oxygen intermediates and thus greatly improving the ORR performance.

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9

Thomson, Martha, Khaled Al-Qattan, Mohamed H. Mansour, and Muslim Ali. "Green Tea Attenuates Oxidative Stress and Downregulates the Expression of Angiotensin II AT1Receptor in Renal and Hepatic Tissues of Streptozotocin-Induced Diabetic Rats." Evidence-Based Complementary and Alternative Medicine 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/409047.

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This study investigates the potential of green tea to modulate oxidative stress and angiotensin II AT1receptor expression in renal and hepatic tissues of diabetic rats. Three groups of rats were studied after 8 weeks following diabetes induction: normal, streptozotocin-induced diabetic (diabetic control), and green-tea-treated diabetic rats. Total antioxidant, catalase, and malondialdehyde levels were assayed by standard procedures. Levels of AT1receptor labeling, in renal and hepatic tissues of the three rat groups, were immunohistochemically investigated using an anti-AT1receptor antibody. L

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10

Fang, Wei, Chengtao Wang, Zhiqiang Liu, et al. "Physical mixing of a catalyst and a hydrophobic polymer promotes CO hydrogenation through dehydration." Science 377, no. 6604 (2022): 406–10. http://dx.doi.org/10.1126/science.abo0356.

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In many reactions restricted by water, selective removal of water from the reaction system is critical and usually requires a membrane reactor. We found that a simple physical mixture of hydrophobic poly(divinylbenzene) with cobalt-manganese carbide could modulate a local environment of catalysts for rapidly shipping water product in syngas conversion. We were able to shift the water-sorption equilibrium on the catalyst surface, leading to a greater proportion of free surface that in turn raised the rate of syngas conversion by nearly a factor of 2. The carbon monoxide conversion reached 63.5%

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