Results 21 to 30 of about 783,494 (265)

Digyaindoleacid A: 2-(1-(4-Hydroxyphenyl)-3-oxobut-1-en-2-yloxy)-3-(1H-indol-3-yl)propanoic Acid, a Novel Indole Alkaloid

Molbank, 2019
Digyaindoleacid A (1) is one of the novel alkaloids produced by the Ghanaian Paenibacillus sp. DE2SH (GenBank Accession Number: MH091697) isolated from the mangrove rhizosphere soils of the Pterocarpus santalinoides tree growing in the wetlands of the ...
Samuel Kwain, Gilbert Mawuli Tetevi, Thomas Mensah, Anil Sazak Camas, Mustafa Camas, Aboagye Kwarteng Dofuor, Faustus Akankperiwen Azerigyik, Hai Deng, Marcel Jaspars, Kwaku Kyeremeh   +9 more
doaj   +1 more source

Synthesis of Deuterated Methylphosphonic Acid Derivatives for Use as Standard Compounds in the Analysis of Toxic Chemicals

Вестник войск РХБ защиты, 2021
One of the ways to ensure high reliability of detection, identification and accuracy of quantitative determination of toxic chemicals (TC) in environmental and biomedical samples by gas and liquid chromatography-mass spectrometry methods is to use ...
V. А. Yashkir, V. I. Krylov, I. I. Krylov, A. V. Brown, D. V. Oreshkin, I. V. Rybalchenko, V. N. Fateenkov   +6 more
doaj   +1 more source

Molecular Level Structure of Biodegradable Poly(Delta-Valerolactone) Obtained in the Presence of Boric Acid

Molecules, 2018
In this study, low molecular weight poly(δ-valerolactone) (PVL) was synthesized through bulk-ring openings polymerization of δ-valerolactone with boric acid (B(OH)3) as a catalyst and benzyl alcohol (BnOH) as an initiator.
Khadar Duale, Magdalena Zięba, Paweł Chaber, Dany Jeanne Di Fouque, Antony Memboeuf, Cristian Peptu, Iza Radecka, Marek Kowalczuk, Grażyna Adamus   +8 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Iron Forms Fe(II) and Fe(III) Determination in Pre-Roman Iron Age Archaeological Pottery as a New Tool in Archaeometry

Molecules, 2021
This article presents studies on iron speciation in the pottery obtained from archaeological sites. The determination of iron forms Fe(II) and Fe(III) has been provided by a very simple test that is available for routine analysis involving the technique ...
Lidia Kozak, Andrzej Michałowski, Jedrzej Proch, Michal Krueger, Octavian Munteanu, Przemyslaw Niedzielski   +5 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Sensors, 2013
In this study, we focused on microfluidic electrochemical analysis of zinc complexes (Zn(phen)(his)Cl2, Zn(his)Cl2) and ZnS quantum dots (QDs) using printed electrodes.
Lukas Nejdl, Branislav Ruttkay-Nedecky, Jiří Kudr, Monika Kremplova, Natalia Cernei, Jan Prasek, Marie Konecna, Jaromir Hubalek, Ondrej Zitka, Jindrich Kynicky, Pavel Kopel, Rene Kizek, Vojtech Adam   +12 more
doaj   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Spectrometric and Voltammetric Analysis of Urease – Nickel Nanoelectrode as an Electrochemical Sensor

Sensors, 2007
Urease is the enzyme catalyzing the hydrolysis of urea into carbon dioxide andammonia. This enzyme is substrate-specific, which means that the enzyme catalyzes thehydrolysis of urea only.
Rene Kizek, Josef Zehnalek, Martin Adamek, Katerina Klosova, Ales Horna, Libuse Trnkova, Michal Masarik, Dalibor Huska, Olga Krystofova, Vojtech Adam, Jan Hradecky, Jaromir Hubalek   +11 more
doaj   +1 more source