Influenza virus is thought to assemble in raft domains of the plasma membrane, but many of the conclusions were based on (controversial) Triton extraction experiments. Here we review how sophisticated methods of fluorescence microscopy, such as FPALM, FRET and FRAP, contributed to our understanding of lipid domain association of the viral proteins HA and M2. The results are summarized in light of the current model for virus assembly and lipid domain organization. Finally, it is described how the signals that govern domain association in transfected cells affect replication of influenza virus.
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http://dx.doi.org/10.1111/cmi.12045 | DOI Listing |
Cell Rep
January 2025
State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China. Electronic address:
Sterols target sterol-sensing domain (SSD) proteins to lower cholesterol and circulating and hepatic triglyceride levels, but the mechanism remains unclear. In this study, we identify acyl-coenzyme A (CoA) synthetase long-chain family member 1 (ACSL1) as a direct target of ergosterol (ES). The C-terminal domain of ACSL1 undergoes conformational changes from closed to open, and ES may target the drug-binding pocket in the acetyl-CoA synthetase-like domain 1 (ASLD1) of ACSL1 to stabilize the closed conformation and maintain its activity.
View Article and Find Full Text PDFCell Mol Biol (Noisy-le-grand)
January 2025
Department of Pharmacology, Faculty of Pharmacy, Mersin University, Mersin, Türkiye.
J Neurosci Res
January 2025
Department of Anaesthesiology and Intensive Care, Medical University Sofia, Sofia, Bulgaria.
The primary objective of this study was to examine neurological disorders and cognitive impairments in patients with secondary hypothyroidism and epilepsy undergoing treatment with antiepileptic medications. The study included 184 patients divided into three groups: Group 1 (subclinical hypothyroidism, n = 60), Group 2 (manifest hypothyroidism, n = 64), and Group 3 (control, n = 60). Patients in Group 2 received levothyroxine therapy (initial dose of 25 μg/day, titrated to 50-100 μg/day), while Groups 1 and 2 were treated with anti-seizure medications (valproic acid, 40 mg/kg/day).
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independenței Str., 050095 Bucharest, Romania.
Glycosylation is a critical post-translational modification that influences protein folding, stability and function. While extensively studied in extracellular and intracellular regions, glycosylation within transmembrane (TM) regions and at membrane interfaces remains poorly understood. This study aimed to map O- and N-glycosylation sites in these regions using a comprehensive database search and structural validation where possible.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal.
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a respiratory virus that emerged in late 2019 and rapidly spread worldwide, causing the COVID-19 pandemic. The spike glycoprotein (S protein) plays a crucial role in viral target recognition and entry by interacting with angiotensin, converting enzyme 2 (ACE2), the functional receptor for the virus, via its receptor binding domain (RBD). The RBD availability for this interaction can be influenced by external factors, such as fatty acids.
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