Results 31 to 40 of about 8,399 (179)

Detoxification and stress response genes expressed in a western North American bumble bee, Bombus huntii (Hymenoptera: Apidae) [PDF]

, 2013
BACKGROUND: The Hunt bumble bee (Bombus huntii Greene, Hymenoptera: Apidae) is a holometabolous, social insect important as a pollinator in natural and agricultural ecosystems in western North America.
Dennis L Welker, James P Strange, Junhuan Xu, Rosalind R James   +3 more
core   +1 more source

A nonheme peroxo-diiron(iii) complex exhibiting both nucleophilic and electrophilic oxidation of organic substrates [PDF]

, 2021
The complex [Fe(III)(2)(μ-O(2))(L(3))(4)(S)(2)](4+) (L(3) = 2-(4-thiazolyl)benzimidazole, S = solvent) forms upon reaction of [Fe(II)(L(3))(2)] with H(2)O(2) and is a functional model of peroxo-diiron intermediates invoked during the catalytic cycle of ...
Browne, Wesley R., Giorgi, Michel, Kaizer, Jozsef, Torok, Patrik, Unjaroen, Duenpen, Viktoria Csendes, Flora   +5 more
core   +1 more source

Atomic Scale Engineering of Multivalence‐State Palladium Photocatalyst for Transfer Hydrogenation with Water as a Proton Source

Advanced Materials, EarlyView.
Photocatalytic transfer hydrogenation is achieved over a multivalence‐state palladium photocatalyst, in which protons generated from photocatalytic water splitting are added to unsaturated double bonds. The operando light‐induced Electron Paramagnetic Resonance (EPR) spectroscopy confirms the synergistic action between Pd single atoms and nanoparticles,
En Zhao, Wenjing Kong, Giorgio Zoppellaro, Yue Yang, Bing Nan, Lina Li, Wengjun Zhang, Zhaohui Chen, Aristides Bakandritsos, Zhu‐Jun Wang, Matthias Beller, Radek Zbořil, Zupeng Chen   +12 more
wiley   +1 more source

Biological Role of Aldo–Keto Reductases in Retinoic Acid Biosynthesis and Signaling [PDF]

, 2012
Several aldo–keto reductase (AKR) enzymes from subfamilies 1B and 1C show retinaldehyde reductase activity, having low Km and kcat values. Only AKR1B10 and 1B12, with all-trans-retinaldehyde, and AKR1C3, with 9-cis-retinaldehyde, display high catalytic ...
Farrés, Jaume, Parés, Xavier, Porté, Sergio, Ruiz, F. Xavier   +3 more
core   +4 more sources

Enzymatic reactions towards aldehydes: An overview [PDF]

, 2023
Many aldehydes are volatile compounds with distinct and characteristic olfactory properties. The aldehydic functional group is reactive and, as such, an invaluable chemical multi-tool to make all sorts of products.
Dobiasova H., Jurkas V., Parmeggiani F., Rudroff F., Schober L., Winkler M.   +5 more
core   +1 more source

Identification and Application of a Novel Patulin Degrading Enzyme From Meyerozyma guilliermondii

Advanced Science, EarlyView.
Patulin (PAT), a hazardous mycotoxin, threatens human health. A novel yeast‐derived short‐chain dehydrogenase/reductase effectively degrades PAT into nontoxic ascladiol via catalytic triad activity. The biological detoxification process has no significant effect on the quality of fresh pear juice.
Yu Zhang, Qianhua Zhao, Solairaj Dhanasekaran, Esa Abiso Godana, Yue Zhang, Xue Bai, Qiya Yang, Hongyin Zhang   +7 more
wiley   +1 more source

NMR Identification of an Acyl-adenylate Intermediate in the Aryl-aldehyde Oxidoreductase Catalyzed Reaction [PDF]

Journal of Biological Chemistry, 1998
A new one-pot synthesis was designed to prepare benzoyl-AMP under anhydrous conditions in N,N-dimethylformamide. Reaction of benzoic acid with N,N'-carbonyldiimidazole and subsequently with 5'-adenosyl monophosphate gave the mixed anhydride in 76% isolated yield. The structure of benzoyl-AMP was confirmed by mass spectroscopy and 1H-, 31P-, and 13C-NMR.
John P. N. Rosazza, Tao Li
openaire   +3 more sources

The Phenolic Content and Bioactivity Assessment of Rubus sanctus Schreber Species with Potential for Food and Ethnopharmacological Uses

Chemistry &Biodiversity, EarlyView.
ABSTRACT In this study, the phytochemical content and various biological activities of Rubus sanctus Schreber species, widely distributed in Turkiye and used in folk medicine, were determined. The ethanol extracts of the root and aerial parts of the species were prepared and their bioactive phytochemical composition was identified by liquid ...
Ismail Yener
wiley   +1 more source

Exploring the Stability and Substrate Profile of Transaminase from Silicibacter pomeroyi with Ancestral Sequence Reconstruction

ChemBioChem, EarlyView.
This study describes the successful identification of ancestral sequences N50 and N49, which have a longer half‐life of approximately four and two times the wild‐type Sp‐amine transaminase, respectively.. This approach effectively enhances the thermal stability of the transaminase.
Luyao Zhao, Bhu‐Bhud Thongrakon, Trishnamoni Gautom, Viktor Sahlberg, Per Berglund   +4 more
wiley   +1 more source

Combinatorial application of two aldehyde oxidoreductases on isobutanol production in the presence of furfural

Journal of Industrial Microbiology and Biotechnology, 2016
Abstract Furfural is a toxic by-product formulated from pretreatment processes of lignocellulosic biomass. In order to utilize the lignocellulosic biomass on isobutanol production, inhibitory effect of the furfural on isobutanol production was investigated and combinatorial application of two oxidoreductases, FucO and YqhD, was suggested
Jong-Min Jeon, Han-Byul Joo, Yung-Hun Yang, Jungoh Ahn, Hongweon Lee, Kyungmoon Park, Ju Hee Lee, Sung-Hee Park, Hyung Min Seo, Kwon-Young Choi, Yong-Hyun Kim, Hun-Suk Song   +11 more
openaire   +3 more sources