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Adam33 is a putative asthma susceptibility gene encoding for a membrane-anchored metalloprotease belonging to the ADAM family. The ADAMs (a disintegrin and metalloprotease) are a family of glycoproteins implicated in cell-cell interactions, cell fusion, and cell signaling. We have determined the crystal structure of the Adam33 catalytic domain in complex with the inhibitor marimastat and the inhibitor-free form. The structures reveal the polypeptide fold and active site environment resembling that of other metalloproteases. The substrate-binding site contains unique features that allow the structure-based design of specific inhibitors of this enzyme.
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http://dx.doi.org/10.1016/j.jmb.2003.10.037 | DOI Listing |
Dalton Trans
September 2025
Department of Chemistry, Jadavpur University, Kolkata - 700032, India.
An interesting ruthenium(III) complex, -[Ru(HL)Cl(PPh)], has been synthesized using a redox-active tetradentate bis-azo diamine ligand (HL). This complex represents the first example of a structurally robust, air- and moisture-stable coordination compound featuring a redox non-innocent ligand that provides a unique N4 donor set comprising both strong π-acidic (azo) and σ-donating (amido) groups. The complex has been comprehensively characterized by elemental analysis, various spectroscopic techniques, and single-crystal X-ray diffraction (SCXRD) studies.
View Article and Find Full Text PDFNano Lett
September 2025
School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, Hubei 430070, China.
Aqueous zinc-ion batteries (AZIBs) represent an environmentally benign energy storage alternative. However, the VO cathode suffers from limited cycling stability and rate capability due to structural instability, vanadium dissolution, and high desolvation energy caused by the large size of [Zn(HO)] deintercalation. Address these issues, we introduce a VO/VOPO (VOP) heterostructure that that reinforces the crystal structure to suppress vanadium dissolution and establishes a hydrophilic interface reducing the desolvation energy of Zn.
View Article and Find Full Text PDFAdv Mater
September 2025
School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
Perovskite materials have revolutionized optoelectronics by virtue of their tunable bandgaps, exceptional optoelectronic properties, and structural flexibility. Notably, the state-of-the-art performance of perovskite solar cells has reached 27%, making perovskite materials a promising candidate for next-generation photovoltaic technology. Although numerous reviews regarding perovskite materials have been published, the existing reviews generally focus on individual material systems (e.
View Article and Find Full Text PDFSmall Methods
September 2025
Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics, Science and Technology, Hebei University, Baoding, 071002, China.
As a new generation of high-energy-density energy storage system, solid-state aluminum-ion batteries have attracted much attention. Nowadays polyethylene oxide (PEO)-based electrolytes have been initially applied to Lithium-ion batteries due to their flexible processing and good interfacial compatibility, their application in aluminum-ion batteries still faces problems. To overcome the limitations in aluminum-ion batteries-specifically, strong Al coordination suppressing ion dissociation, high room-temperature crystallinity, and inadequate mechanical strength-this study develops a blended polymer electrolyte (BPE) of polypropylene carbonate (PPC) and PEO.
View Article and Find Full Text PDFAdv Mater
September 2025
School of Materials Science and Engineering, Anhui University, Hefei, 230601, China.
Modulating the electronic structure of catalysts to maximize their power holds the key to address the challenges faced by zinc-iodine batteries (ZIBs), including the shuttle effect and slow redox kinetics at the iodine cathode. Herein, oxygen vacancies is innovatively introduced into CoO lattice to create high-spin-state Co active sites in nonstoichiometric CoO nanocrystals supported by carbon nanofibers (H-CoO/CNFs). This simple strategy intensifies crystal field splitting of Co 3d orbitals, optimizing the spin-orbital coupling between Co 3d orbitals and iodine species.
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