Nanodiscs are soluble nanoscale phospholipid bilayers which can self-assemble integral membrane proteins for biophysical, enzymatic or structural investigations. This means for rendering membrane proteins soluble at the single molecule level offers advantages over liposomes or detergent micelles in terms of size, stability, ability to add genetically modifiable features to the Nanodisc structure and ready access to both sides of the phospholipid bilayer domain. Thus the Nanodisc system provides a novel platform for understanding membrane protein function. We provide an overview of the Nanodisc approach and document through several examples many of the applications to the study of the structure and function of integral membrane proteins.
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http://dx.doi.org/10.1016/j.febslet.2009.10.024 | DOI Listing |
J Membr Biol
January 2025
Departamento de Alimentos. División de Ciencias de la Vida, Campus Irapuato-Salamanca, Universidad de Guanajuato, Carretera Irapuato Silao km 9, 36500, Irapuato, Guanajuato, México.
The Cell-Free Protein Synthesis (CFPS) is an innovative technique used to produce various proteins. It has several advantages, including short expression times, no strain engineering is required, and toxic proteins such as membrane proteins can be produced. However, the most important advantage is that it eliminates the need for a living cell as a production system.
View Article and Find Full Text PDFJ Mater Chem B
January 2025
Department of Thoracic Cancer, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China.
Intracellular delivery of proteins has attracted significant interest in biological research and cancer treatment, yet it continues to face challenges due to the lack of effective delivery approaches. Herein, we developed an efficient strategy cationic α-helical polypeptide-mediated anionic proprotein delivery. The protein was reversibly modified with adenosine triphosphate dynamic covalent chemistry to prepare an anionic proprotein (A-protein) with abundant phosphate groups.
View Article and Find Full Text PDFProgrammed cell death (apoptosis) is essential part of the process of tissue regeneration that also plays role in the mechanism of pathology. The phenomenon of fast and transient permeability of mitochondrial membranes by various triggers, known as permeability transition pore (mPTP) leads to the release of proapoptotic proteins and acts as an initial step in initiation of apoptosis. However, a role for mPTP was also suggested for physiology and it is unclear if there is a threshold in number of mitochondria with mPTP which induces cell death and how this mechanism is regulated in different tissues.
View Article and Find Full Text PDFMessenger RNA (mRNA) therapeutics have garnered considerable attention due to their remarkable efficacy in the treatment of various diseases. The COVID-19 mRNA vaccine and RSV mRNA vaccine have been approved on the market. Due to the inherent nuclease-instability and negative charge of mRNA, delivery systems are developed to protect the mRNA from degradation and facilitate its crossing cell membrane to express functional proteins or peptides in the cytoplasm.
View Article and Find Full Text PDFISME Commun
January 2024
BioZone, Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada.
The archaeal class is widely and abundantly distributed in anoxic habitats. Metagenomic studies have suggested that they are mixotrophic, capable of CO fixation and heterotrophic growth, and involved in acetogenesis and lignin degradation. We analyzed 35 metagenome-assembled genomes (MAGs), including the first complete circularized MAG (cMAG) of the Bathy-6 subgroup, from the metagenomes of three full-scale pulp and paper mill anaerobic digesters and three laboratory methanogenic enrichment cultures maintained on pre-treated poplar.
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