Results 41 to 50 of about 5,339 (176)

Hispidin and Lepidine E: two Natural Compounds and Folic acid as Potential Inhibitors of 2019-novel coronavirus Main Protease (2019-nCoVMpro), molecular docking and SAR study [PDF]

open access: yesarXiv, 2020
2019-nCoV is a novel coronavirus was isolated and identified in 2019 in Wuhan, China. On 17th February and according to world health organization, a number of 71 429 confirmed cases worldwide, among them 2162 new cases recorded in the last 24 hours. There is no drug or vaccine for human and animal coronavirus.
arxiv  

Self-assembled chiral phosphorus nanotubes from phosphorene: a molecular dynamics study [PDF]

open access: yesRSC Advances,2017,7,24647-24651, 2016
Controlled syntheses in nanoscale structures should be expected and phosphorous nanotubes with predefined chiralities are important in electronic devices with tunable bandgap. Here, incorporating molecular dynamics simulations with theoretical analyses, we show that a zigzag phosphorene nanoribbon can self-assemble and form a corresponding chiral ...
arxiv   +1 more source

Distribution and Alkaline phosphatatase activity of filamentous conjugales in an upper Teesdale stream [PDF]

open access: yes, 1992
Two small streams in Upper Teesdale National Nature Reserve were examined with respect to water chemistry and filamentous Conjugales present. Phosphate, nitrate and ammonia concentrations in the water were determined, to investigate a possible link ...
Casey, Catherine
core  

Phylogenetic distribution, biogeography and the effects of land management upon bacterial non-specific Acid phosphatase Gene diversity and abundance [PDF]

open access: yes, 2018
Background and aims :Bacterial Non-Specific Acid Phosphatase (NSAP) enzymes are capable of dephosphorylating diverse organic phosphoesters but are rarely studied: their distribution in natural and managed environments is poorly understood.
Akkari, E.   +5 more
core   +1 more source

Land use and biodiversity effects on P-transformation in soil [PDF]

open access: yes, 2018
Phosphorus (P) is next to nitrogen (N) an essential nutrient for all living organisms. In contrast to N from volatile species are known, P cannot be replenished from the atmosphere.
Sorkau, Elisabeth
core   +1 more source

Transition State Interactions in a Promiscuous Enzyme: Sulfate and Phosphate Monoester Hydrolysis by Pseudomonas aeruginosa Arylsulfatase

open access: yesbioRxiv, 2018
Pseudomonas aeruginosa arylsulfatase (PAS) hydrolyses sulfate and, promiscuously, phosphate monoesters. Enzyme-catalyzed sulfate transfer is crucial to a wide variety of biological processes, but detailed studies of the mechanistic contributions to its ...
B. van Loo   +6 more
semanticscholar   +1 more source

Water chemistry and algal phosphatase activity in zinc-contaminated streams [PDF]

open access: yes, 1990
A study was carried out on algal phosphatase activity and water chemistry in zinc-contaminated streams in the Northern Pennine Orefield. Fourteen field sites were studied; They ranged from low contaminated to high-zinc sites (0.1 mg 1(^-1) to 19.4 mg 1(^-
Bellos, D.
core  

In silico modeling of the molecular structure and binding of leukotriene A4 into leukotriene A4 hydrolase [PDF]

open access: yesarXiv, 2012
A combined molecular docking and molecular structure in silico analysis on the substrate and product of leukotriene A4 hydrolase (LTA4H) was performed. The molecular structures of the substrate leukotriene A4 (LTA4) and product leukotirene B4 (LTB4) were studied through Density Functional Theory (DFT) calculations at the B3LYP/6-31+G(d) level of theory
arxiv  

COMPARATIVE APPROACHES FOR PLANT GENOMES: UNRAVELING "INTRA" AND "INTER" SPECIES RELATIONSHIPS FROM PRELIMINARY GENE ANNOTATIONS [PDF]

open access: yes, 2016
Comparative genomics studies the differences and similarities between different species, to transfer biological information from model organisms to newly sequenced genomes, and to understand the evolutionary forces that drive changes in genomic features ...
Ambrosino, Luca
core  

Fluorescence of Naphthol AS-MX is Readily Detectable in Dioxane Mixtures [PDF]

open access: yes, 2019
Numerous enzymes have been demonstrated to be active in non-aqueous solutions, yet the utility of phosphatases under such conditions has been difficult to determine.
Blauwkamp, James A.   +4 more
core   +1 more source

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