Results 281 to 290 of about 2,950,856 (378)

Functional and comparative analysis of the FeII/2-oxoglutarate-dependent dioxygenases without using any substrate. [PDF]

open access: yesBiol Methods Protoc
Das S   +8 more
europepmc   +1 more source

Protometabolic functions of pyridoxal: A link between early amino acid synthesis and enzyme evolution

open access: yesThe FEBS Journal, EarlyView.
Schlikker et al. characterized the conversion of pyridoxal to pyridoxamine under conditions mimicking the ones likely existing at the origin of metabolism. These conditions triggered nitrogen incorporation into amino acids in solution before the origins of enzymes.
Mariarita Bertoldi, Gianluca Molla
wiley   +1 more source

The molecular mechanisms of defensive‐grade organic acid biosynthesis in ground beetles

open access: yesInsect Molecular Biology, EarlyView.
Formic acid and methacrylic acid are the primary defensive chemicals in the pygidial gland secretions of Platynus angustatus and Pterostichus moestus, respectively. Comparative transcriptomics suggests the folate cycle and valine catabolism may be involved in the biosynthesis of formic acid and methacrylic acid, respectively.
Adam M. Rork   +3 more
wiley   +1 more source

The loss of the urea cycle and ornithine metabolism in different insect orders: An omics approach

open access: yesInsect Molecular Biology, EarlyView.
Among urea cycle enzymes, only the nitric oxide synthase gene is universally present across insect genomes. All Hemiptera species lack the enzymes needed to convert citrulline to arginine, and some also lack the pathway from arginine to ornithine. Putrescine and spermidine synthesis is conserved in all insects, but aphids lack the capability to produce
Jessica Cristina Silva Martins   +7 more
wiley   +1 more source

Stereochemical insights into sarpagan and akuammiline alkaloid biosynthesis

open access: yesNew Phytologist, EarlyView.
Summary Sarpagan and akuammiline monoterpenoid indole alkaloids (MIAs) are a class of bioactive plant‐derived compounds with significant pharmaceutical potential. These alkaloids are formed through oxidative cyclization of geissoschizine, catalyzed by homologous cytochrome P450 monooxygenases (CYP) known as sarpagan bridge enzymes (SBEs) and rhazimal ...
Scott Galeung Alexander Mann   +6 more
wiley   +1 more source

Coordinated conformational changes in P450 decarboxylases enable hydrocarbons production from renewable feedstocks. [PDF]

open access: yesNat Commun
Generoso WC   +15 more
europepmc   +1 more source

Comparative proteomics analysis of root and nodule mitochondria of soybean

open access: yesPlant, Cell &Environment, EarlyView.
Abstract Legumes perform symbiotic nitrogen fixation through rhizobial bacteroids housed in specialised root nodules. The biochemical process is energy‐intensive and consumes a huge carbon source to generate sufficient reducing power. To maintain the symbiosis, malate is supplied by legume nodules to bacteroids as their major carbon and energy source ...
Wai‐Ching Sin   +4 more
wiley   +1 more source

Phenanthrene degradation by a flavoprotein monooxygenase from <i>Phanerodontia chrysosporium</i>. [PDF]

open access: yesAppl Environ Microbiol
Hayasaka M   +9 more
europepmc   +1 more source

Kinetic studies of the interaction of cannabinoids with singlet oxygen

open access: yesPhotochemistry and Photobiology, EarlyView.
Graphical abstract showing sensitization of singlet oxygen by xanthone and its subsequent quenching by cannabinoids. Abstract The kinetics of the interaction of several cannabinoids with singlet oxygen have been examined in acetonitrile solution using laser flash photolysis techniques and using xanthone as a singlet oxygen sensitizer.
Carly J. Frank   +3 more
wiley   +1 more source

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