Results 31 to 40 of about 20,669 (341)
Harnessing enzyme plasticity for the synthesis of oxygenated sesquiterpenoids
Beilstein Journal of Organic Chemistry, 2019 8-Methoxy-γ-humulene, (E)-8-methoxy-β-farnesene, 12-methoxy-β-sesquiphellandrene and 12-methoxyzingiberene can be synthesised in amorphadiene synthase-catalysed reactions from 8- and 12-methoxyfarnesyl diphosphates due to the highly plastic yet tightly ...
Melodi Demiray +2 more
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Characterisation of a Recombinant Patchoulol Synthase Variant for Biocatalytic Production of Terpenes [PDF]
, 2015 The patchoulol synthase (PTS) is a multi-product sesquiterpene synthases which is the central enzyme for biosynthesis of patchouli essential oil in the patchouli plant.
Alemdar, Semra +6 more
core +1 more source
Interlinked GTPase cascades provide a motif for both robust switches and oscillators [PDF]
J. R. Soc. Interface 16, 20190198 (2019), 2019 GTPases regulate a wide range of cellular processes, such as intracellular vesicular transport, signal transduction, and protein translation. These hydrolase enzymes operate as biochemical switches by toggling between an active guanosine triphosphate (GTP)-bound state and an inactive guanosine diphosphate (GDP)-bound state.
arxiv +1 more source
Enzyme kinetics of the mitochondrial deoxyribonucleoside salvage pathway are not sufficient to support rapid mtDNA replication. [PDF]
PLoS Computational Biology, 2011 Using a computational model, we simulated mitochondrial deoxynucleotide metabolism and mitochondrial DNA replication. Our results indicate that the output from the mitochondrial salvage enzymes alone is inadequate to support a mitochondrial DNA ...
Vishal V Gandhi, David C Samuels
doaj +1 more source
PLoS ONE, 2015 BackgroundRibonucleotide reductase catalyzes the conversion of ribonucleotide diphosphates to deoxyribonucleotide diphosphates. The functional enzyme consists of two subunits - one large (RRM1) and one small (RRM2 or RRM2b) subunit.
Vei Mah +10 more
doaj +1 more source
Sites of synthesis and transport of photosynthetic products within the leaf cell [PDF]
, 1964 1.1. After illumination of leaves in the presence of 14CO2 for various times and subsequent freeze drying, chloroplasts were isolated using a nonaqueous procedure.
Heber, U., Willenbrink, J.
core +1 more source
In vitro degradation of guanosine 5'-diphosphate, 3'-diphosphate. [PDF]
Proceedings of the National Academy of Sciences, 1977 The degradation of guanosine 5'-diphosphate,3'-diphosphate (ppGpp) by the "crude" ribosomal fraction of Escherichia coli CP78 (rel+, spoT+) was demonstrated and characterized. When the 3'-pyrophosphoryl group of ppGpp was hydrolyzed, the primary degradation product was 5'-GDP. Phosphorylation of ppGpp to guanosine 5'-triphosphate,3'-diphosphate (pppGpp)
openaire +3 more sources
Plants, 2020 Terpene synthases make up a large family of enzymes that convert prenyl diphosphates into an enormous variety of terpene skeletons. Due to their electrophilic reaction mechanism—which involves the formation of carbocations followed by hydride shifts and ...
Tobias G. Köllner +2 more
doaj +1 more source
Emulsifiers in ultra-processed foods in the UK food supply
Public Health Nutrition, 2023 Objective: Ultra-processed foods (UPF), including those containing food additive emulsifiers, have received research attention due to evidence implicating them in the pathogenesis of certain diseases.
Alicia Sandall +3 more
doaj +1 more source
ScienceOpen Research, 2014 Rat CD39, a membrane-bound ectonucleoside triphosphate diphosphohydrolase that hydrolyzes extracellular nucleoside tri- and diphosphates, is anchored to the membrane by two transmembrane domains at the two ends of the molecule.
Guido Guidotti, Sari Paavilainen
doaj +1 more source