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Preventing inappropriate signals pre- and post-ligand perception by a toggle switch mechanism of ERECTA.
Proc Natl Acad Sci U S A
January 2025
HHMI, The University of Texas at Austin, Austin, TX 78712.
Dynamic control of signaling events requires swift regulation of receptors at an active state. By focusing on the Arabidopsis ERECTA (ER) receptor kinase, which perceives peptide ligands to control multiple developmental processes, we report a mechanism preventing inappropriate receptor activity. The ER C-terminal tail (ER_CT) functions as an autoinhibitory domain: Its removal confers higher kinase activity and hyperactivity during inflorescence and stomatal development.
View Article and Find Full Text PDFKnowledgedriven design of boron-based catalysts for oxidative dehydrogenation of propane.
Phys Chem Chem Phys
January 2025
State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemistry, Dalian University of Technology, Dalian 116024, China.
Metal-free boron-based materials exhibit remarkable performance in oxidative dehydrogenation of propane (ODHP). Rational design of boron-based catalysts requires a systematic understanding of the underlying mechanisms to constitute a knowledge base. This work provides a comprehensive view of the reaction mechanism of the boron-based ODH reaction and discusses the key features of the reaction systems, including the inhibition of deep oxidation, high olefin selectivity, and the role of water in the ODHP reaction.
View Article and Find Full Text PDFDimerizing DNA-AgNCs a C-Ag-C structure for fluorescence sensing with dual-output signals.
Chem Commun (Camb)
January 2025
Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, 410082, People's Republic of China.
The unique insertion capability of Ag into cytosine-cytosine (C-Ag-C) mismatch-base pairs enables precise fabrication of DNA-trapped silver nanoclusters (DNA-AgNCs) through varying the DNA sequences, thereby offering precise assembly of DNA-AgNCs and demonstrating great fluorescence applications. However, most of the DNA-AgNC-based fluorescence sensors have a single output signal. Herein, we developed a dimerized DNA-AgNC system through C-Ag-C connection at the 3'-end of a designed DNA.
View Article and Find Full Text PDFTwo Steps Li Ion Storage Mechanism in Ruddlesden-Popper LiLaTiO.
Adv Sci (Weinh)
January 2025
Emerging Materials R&D Division, Korea Institute of Ceramic Engineering & Technology, Jinju, Gyeongnam, 52851, Republic of Korea.
Innovative anode materials are essential for achieving high-energy-density lithium-ion batteries (LIBs) with longer lifetimes. Thus far, only a few studies have explored the use of layered perovskite structures as LIB anode materials. In this study, the study demonstrates the performance and charge/discharge mechanism of the previously undefined Ruddlesden-Popper Li₂La₂Ti₃O₁₀ (RPLLTO) as an anode material for LIBs.
View Article and Find Full Text PDFMid-infrared spectra of dried and roasted cocoa ( L.): A dataset for machine learning-based classification of cocoa varieties and prediction of theobromine and caffeine content.
Data Brief
February 2025
Centro Surcolombiano de Investigación en Café (CESURCAFÉ), Departamento de Ingeniería Agrícola, Universidad Surcolombiana, Neiva-Huila 410001, Colombia.
This paper presents a comprehensive dataset of mid-infrared spectra for dried and roasted cocoa beans ( L.), along with their corresponding theobromine and caffeine content. Infrared data were acquired using Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy, while High-Performance Liquid Chromatography (HPLC) was employed to accurately quantify theobromine and caffeine in the dried cocoa beans.
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