The significance of myosin has been expanded recently with the realization that it is found in every eukaryotic cell, where it has a role in cytokinesis, cell division, and vesicle transport. Advances in molecular genetics and expression systems related to myosin and actin have helped to reveal the extent of the myosin superfamily. New motility assays and techniques have provided information about the residues involved in ATP hydrolysis and the conformational change induced by nucleotide binding. The results of these techniques revealing structural and functional information combined with previous studies of the active site of myosin should provide future direction for studying this exciting and rapidly moving area of biochemistry.
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http://dx.doi.org/10.1146/annurev.ph.58.030196.003323 | DOI Listing |
Nat Commun
January 2025
NCI RAS Initiative, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
Mutations in RAS and PI3Kα are major drivers of human cancer. Their interaction plays a crucial role in activating PI3Kα and amplifying the PI3K-AKT-mTOR pathway. Disrupting RAS-PI3Kα interaction enhances survival in lung and skin cancer models and reduces tumor growth and angiogenesis, although the structural details of this interaction remain unclear.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
School of Medical Devices, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, PR China. Electronic address:
Phenolic compounds are typical organic pollutants which cause severe human health problems due to their teratogenesis, carcinogenesis, neurotoxicity, immunotoxicity and endocrine disruption. Natural laccase is a multicopper oxidase existing in bacteria, plants, and insects, which can accelerate the transformation of phenolic compounds to their less hazardous oxidized products under mild conditions without harmful byproducts. Despite eco-environmentally friendly property of laccase, it still faces constraints of widespread application attribute to its high cost, complex preparation, and vulnerability.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Wastewater Laboratory Targoviste, Water Company Targoviste-Dambovita, Calea Ploiesti Street, 130 145, Targoviste, Romania. Electronic address:
Background: The calibration curve represents the relationship between known CRM and the response of the instrument (e.g absorbance). Most of the time, in analytical chemistry standards, the linear function (of the 1st degree) is used to characterize the calibration curves.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, USA. Electronic address:
Background: DJ-1 is a protein whose mutation causes rare heritable forms of Parkinson's disease (PD) and is of interest as a target for treating PD and other disorders. This work used high performance affinity microcolumns to screen and examine the binding of small molecules to DJ-1, as could be used to develop new therapeutics or to study the role of DJ-1 in PD. Non-covalent entrapment was used to place microgram quantities of DJ-1 in an unmodified form within microcolumns, which were then used in multiple studies to analyze binding by model compounds and possible drug candidates to DJ-1.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China. Electronic address:
Metal-organic frameworks (MOFs) are porous, ordered arrays formed by coordination bonds between organic ligands and metal ions or clusters. The highly tunable properties of the MOF structure and performance make it possible to meet the needs of many applications. Conductive MOFs are essential in the domain of sensing due to their electrical conductivity, porosity, and catalytic properties, offering an effective platform for detection.
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