Actinorhodin Biosynthesis Terminates with an Unprecedented Biaryl Coupling Reaction
Angewandte Chemie, Volume 135, Issue 5, January 26, 2023., 2023 The last dimerization step of actinorhodin (ACT) biosynthesis was established through biochemical studies. ActVA‐ORF4 is a unique NAD(P)H‐dependent enzyme that catalyzes the biaryl‐coupling reaction using 8‐hydroxydihydrokalafungin (DHK‐OH) as the sole substrate. ActVA‐ORF3 is a quinone‐forming enzyme that forms DHK‐OH and ACT.
Makoto Hashimoto +6 more
wiley +2 more sources
Natural liquid organic hydrogen carrier with low dehydrogenation energy: A first principles study [PDF]
International Journal of Hydrogen Energy, 45, 32089 (2020), 2023 Liquid organic hydrogen carriers (LOHCs) represent a promising approach for hydrogen storage due to their favorable properties including stability and compatibility with the existing infrastructure. However, fossil-based LOHC molecules are not green or sustainable.
arxiv +1 more source
A pilot randomized controlled trial of WeiNaoKang (SaiLuoTong) in treating vascular dementia
AGING MEDICINE, Volume 5, Issue 4, Page 246-256, December 2022., 2022 A 16‐week randomized double‐blind, placebo‐controlled trial for vascular dementia was carried out with WeiNaoKang (or SaiLuoTong). There were significant differences in improvement in cognitive function and activities of daily living, favouring the treatment group.
Junguang Liu +6 more
wiley +1 more source
Novel pyrrolizidine alkaloid [PDF]
, 1991 The present invention involves a purified bioactive compound of the formula: ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are H or an acyl having less than about five carbon atoms.
Elbein, Alan D., Tropea, Joseph E.
core +1 more source
Involvement of the leaf-specific multidrug and toxic compound extrusion (MATE) transporter Nt-JAT2 in vacuolar sequestration of nicotine in Nicotiana tabacum [PDF]
, 2014 Alkaloids play a key role in higher plant defense against pathogens and herbivores. Following its biosynthesis in root tissues, nicotine, the major alkaloid of Nicotiana species, is translocated via xylem transport toward the accumulation sites, leaf ...
Goossens, Alain +11 more
core +4 more sources
Structure-activity relationships of synthetic analogs of jasmonic acid and coronatine on induction of benzo[c]phenanthridine alkaloid accumulation in Eschscholzia californica cell cultures [PDF]
, 2000 A facile test system based on the accumulation of benzo[c]phenanthridine alkaloids in Eschscholzia californica cell suspension culture (an indicator of defense gene activation) has been used to analyze a series of synthetic compounds for elicitor-like ...
Dzink J.L. +5 more
core +1 more source
An integrated targeted and untargeted approach for the analysis of ergot alkaloids in cereals using UHPLC - hybrid quadrupole time-of-flight mass spectrometry [PDF]
, 2015 An ultra-high performance liquid chromatography hybrid quadrupole time of flight (Q-TOF) mass spectrometry (MS) method is described for the simultaneous quantitative determination of common ergot alkaloids and the screening, detection and identification ...
Arroyo Manzanares, Natalia +5 more
core +2 more sources
Isolation and X-ray crystal structure of tetrahydroisoquinoline alkaloids from Calycotome villosa Subsp. intermedias [PDF]
, 2004 Two tetrahydroisoquinoline alkaloids were extracted from the alkaloid fraction of a methanol extract of the seeds of Calycotome Villosa Subsp. intermedia.
Bolte, Michael +6 more
core +2 more sources
Plants to Polyelectrolytes: Theophylline Polymers and their Microsphere Synthesis [PDF]
Macromol. Rapid Commun. 2017, 38 (8), 1600748, 2017 To extend fossil oil supplies, sustainable feed stocks for the production of useful reagents and polymers should be harnessed. In this regard, chemicals derived from plants are excellent candidates. While the vast majority of plant sources used for polymer science only contain CxHyOz, alkaloids such as caffeine, nicotine, and theophylline possess ...
arxiv +1 more source
Application of recombinant DNA technology to studies on plant secondary metabolism [PDF]
, 2001 This review which is concerned with the application of recombinant DNA technology to studies on plant secondary metabolism, presents the more common plant transformation strategies and shows how these genetic approaches are being used in attempts to ...
Yeoman, Michael M., Zárate, Rafael
core +1 more source