High-resolution atomic force microscopy (AFM) allows a new insight into the surface of mammalian cells. Using the human red blood cell (RBC) as a model, we have demonstrated an important correlation between the conformation of membrane proteins measured from the external face of the cell and the cell shape.
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http://dx.doi.org/10.1016/j.bioelechem.2006.03.019 | DOI Listing |
J Biomol Struct Dyn
January 2025
College of Applied Medical Sciences, lmam Abdulrahman Bin Faisal University (lAU), Dammam, Saudi Arabia.
The present study explores the conformational dynamics of the membrane protein of Middle East Respiratory Syndrome Coronavirus (MERS-CoV) within the Endoplasmic Reticulum-Golgi Intermediate Compartment (ERGIC) complex using an all-atomistic molecular dynamics simulation approach. Significant structural changes were observed in the N-terminal, C-terminal, transmembrane, and beta-sheet sandwich domains of the MERS-CoV membrane protein. This study also highlights the structural similarities between the MERS-CoV and the SARS-CoV-2 membrane proteins, particularly in how both exhibit a distinct kink in the transmembrane helix caused by aromatic residue-lipid interactions.
View Article and Find Full Text PDFJ Mol Med (Berl)
January 2025
Cardiovascular Surgery Department of The First Affiliated Hospital of Harbin Medical University, and Pharmacology Department of Pharmacy College of Harbin Medical University, Harbin, 150081, China.
Myocardial ischemia/reperfusion (IR) injury is a common adverse event in the clinical treatment of myocardial ischemic disease. Autosis is a form of cell death that occurs when autophagy is excessive in cells, and it has been associated with cardiac IR damage. This study aimed to investigate the regulatory mechanism of circRNA CDR1AS on autosis in cardiomyocytes under IR.
View Article and Find Full Text PDFApoptosis
January 2025
Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China.
Tangerine peel is a traditional Chinese herb and has been widely applied in foods and medicine for its multiple pharmacological effects. Erythropoietin receptor (EPOR), a member of the cytokine receptor family, is widely expressed in multiple tissues in especial kidney and plays protective effects in adverse physiological and pathological conditions. We hypothesized that it might be EPOR agonists existing in Tangerine peel bring such renal benefits.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Alfred Nobels Allé 8, Floor 8, 14152, Huddinge, Sweden.
ITK-SYK and TEL-SYK (also known as ETV6-SYK) are human tumor-causing chimeric proteins containing the kinase region of SYK, and the membrane-targeting, N-terminal, PH-TH domain-doublet of ITK or the dimerizing SAM-PNT domain of TEL, respectively. ITK-SYK causes peripheral T cell lymphoma, while TEL-SYK was reported in myelodysplastic syndrome. BTK is a kinase highly related to ITK and to further delineate the role of the N-terminus, we generated the corresponding fusion-kinase BTK-SYK.
View Article and Find Full Text PDFTrends Mol Med
January 2025
Department of Biomedicine, University of Bergen, Bergen, Norway. Electronic address:
Seven primary familial brain calcification genes have been identified but their role in disease mechanisms has been less explored. Cheng et al. recently demonstrated that astrocyte-mediated regulation of brain phosphate (P) involves direct and functional interactions among three of these proteins, paving the way for new strategies to combat brain calcification.
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