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The P. aeruginosa effector Tse5 forms membrane pores disrupting the membrane potential of intoxicated bacteria
(Nature, 2022)
The type VI secretion system (T6SS) of Pseudomonas aeruginosa injects effector proteins into neighbouring competitors and host cells, providing a fitness advantage that allows this opportunistic nosocomial pathogen to ...
Conformational Plasticity Underlies Membrane Fusion Induced by an HIV Sequence Juxtaposed to the Lipid Envelope
(Springer Nature, 2021-01-14)
Envelope glycoproteins from genetically-divergent virus families comprise fusion peptides (FPs) that have been posited to insert and perturb the membranes of target cells upon activation of the virus-cell fusion reaction. ...
Molecular Mechanisms Regulating the DNA Repair Protein APE1: A Focus on Its Flexible N-Terminal Tail Domain
(MDPI, 2021-06-11)
APE1 (DNA (apurinic/apyrimidinic site) endonuclease 1) is a key enzyme of one of the major DNA repair routes, the BER (base excision repair) pathway. APE1 fulfils additional functions, acting as a redox regulator of ...
Mechanism for ESCPE-1 mediated membrane remodelling and cargo selection in endosomal
(2020-10-02)
El reciclaje de proteínas es fundamental para mantener la homeostasis celular. Este trabajo se enfoca en el reciclaje de proteínas que llegan a los endosomas. Allí, las proteínas transmembrana (receptores) son recicladas ...
Functional Delineation of a Protein–Membrane Interaction Hotspot Site on the HIV-1 Neutralizing Antibody 10E8
(MDPI, 2022-09-15)
Antibody engagement with the membrane-proximal external region (MPER) of the envelope glycoprotein (Env) of HIV-1 constitutes a distinctive molecular recognition phenomenon, the full appreciation of which is crucial for ...
C24:0 and C24:1 sphingolipids in cholesterol-containing, five- and six-component lipid membranes
(Nature, 2020-08-24)
The biophysical properties of sphingolipids containing lignoceric (C24:0) or nervonic (C24:1) fatty acyl residues have been studied in multicomponent lipid bilayers containing cholesterol (Chol), by means of confocal ...
Lipid Self-Assemblies under the Atomic Force Microscope
(MDPI, 2021-09-18)
Lipid model membranes are important tools in the study of biophysical processes such as lipid self-assembly and lipid–lipid interactions in cell membranes. The use of model systems to adequate and modulate complexity helps ...
CHO/LY-B Cell Growth under Limiting Sphingolipid Supply: Correlation between Lipid Composition and Biophysical Properties of Sphingolipid-Restricted Cell Membranes
(Wiley, 2021-06)
Sphingolipids (SL) are ubiquitous in mammalian cell membranes, yet there is little data on the behavior of cells under SL- restriction conditions. LY- B cells derive from a CHO linein whichserine palmitoyl transferase ...
Erythrocyte Membrane Nanomechanical Rigidity Is Decreased in Obese Patients
(MDPI, 2022-02-08)
This work intends to describe the physical properties of red blood cell (RBC) membranes in obese adults. The hypothesis driving this research is that obesity, in addition to increasing the amount of body fat, will also ...
Plasma membrane effects of sphingolipid-synthesis inhibition by myriocin in CHO cells: a biophysical and lipidomic study
(Nature Research, 2022)
[EN] Suppression of a specific gene effect can be achieved by genetic as well as chemical methods. Each approach may hide unexpected drawbacks, usually in the form of side effects. In the present study, the specific inhibitor ...