Now showing items 1-20 of 49

    • Thumbnail

      A Computational Module Assembled from Different Protease Family Motifs Identifies PI PLC from Bacillus cereus as a Putative Prolyl Peptidase with a Serine Protease Scaffold 

      Rendón Ramírez, Adela; Shukla, Manish; Oda, Masataka; Chakraborty, Sandeep; Minda, Renu; Dandekar, Abhaya M.; Asgeirsson, Bjarni; Goñi Urcelay, Félix María ORCID; Rao, Basuthkar J. (Public Library Science, 2013-08)
      Proteolytic enzymes have evolved several mechanisms to cleave peptide bonds. These distinct types have been systematically categorized in the MEROPS database. While a BLAST search on these proteases identifies homologous ...
    • Thumbnail

      A fluorogenic cyclic peptide for imaging and quantification of drug-induced apoptosis 

      Barth, Nicole D.; Subirós Funosas, Ramón; Mendive Tapia, Lorena; Duffin, Rodger; Shields, Mario A.; Cartwright, Jennifer A.; Troeira Henriques, Sónia; Sot, Jesús; Goñi Urcelay, Félix María ORCID; Lavilla, Rodolfo; Marwick, John A.; Vermeren, Sonja; Rossi, Adriano G.; Egeblad, Mikala; Dransfield, Ian; Vendrell, Marc (Nature, 2020-08-12)
      Programmed cell death or apoptosis is a central biological process that is dysregulated in many diseases, including inflammatory conditions and cancer. The detection and quantification of apoptotic cells in vivo is hampered ...
    • Thumbnail

      Accumulated Bending Energy Elicits Neutral Sphingomyelinase Activity in Human Red Blood Cells 

      López Jiménez, David ORCID; Egibo-Gabas, Meritxell; Lopez-Montero, Ivan; Busto Gamero, Jon V.; Casas, Josefina; Garnier, Marie; Monroy, Francisco; Larijani, Banafshe; Goñi Urcelay, Félix María ORCID; Alonso Izquierdo, Alicia ORCID (Elservier, 2012-05-02)
      [EN] We propose that accumulated membrane bending energy elicits a neutral sphingomyelinase (SMase) activity in human erythrocytes. Membrane bending was achieved by osmotic or chemical processes, and SMase activity was ...
    • Thumbnail

      Adenylate Cyclase Toxin promotes bacterial internalisation into non phagocytic cells 

      Martín Plágaro, César Augusto; Etxaniz Iriondo, Asier; Belloso Uribe, Kepa; Etxebarria Gallego, Aitor; González Bullón, David ORCID; Arluzea de Jauregizar, Jon Andoni ORCID; Goñi Urcelay, Félix María ORCID; Arechaga Martínez, Juan Miguel ORCID; Ostolaza Echabe, Elena Amaya (Nature Publishing Group, 2015-09-08)
      Bordetella pertussis causes whooping cough, a respiratory infectious disease that is the fifth largest cause of vaccine-preventable death in infants. Though historically considered an extracellular pathogen, this bacterium ...
    • Thumbnail

      Arachidyl Amido Cholanoic Acid Improves Liver Glucose and Lipid Homeostasis in Nonalcoholic Steatohepatitis Via AMPK and mTOR Regulation 

      Fernández Ramos, David; Lopitz Otsoa, Fernando; De la Cruz Villar, Laura; Bilbao García, Jon; Pagano, Martina; Mosca, Laura; Bizkarguenaga, Maider; Serrano Maciá, Marina; Azkargorta, Mikel; Iruarrizaga Lejarreta, Marta; Sot, Jesús; Tsvirkun, Darya; Van Liempd, Sebastiaan Martijn; Goñi Urcelay, Félix María ORCID; Alonso, Cristina; Martínez Chantar, María Luz ORCID; Elortza, Felix; Hayardeny, Liat; Lu, Shelly C.; Mato, José M. (Baishideng, 2020-09-14)
      BACKGROUND Arachidyl amido cholanoic acid (Aramchol) is a potent downregulator of hepatic stearoyl-CoA desaturase 1 (SCD1) protein expression that reduces liver triglycerides and fibrosis in animal models of steatohepatitis. ...
    • Thumbnail

      Autophagy protein LC3C binding to phospholipid and interaction with lipid membranes 

      Ballesteros Rivero, Uxue; Etxaniz Iriondo, Asier; Iriondo Nagore, Marina; Varela Fernández, Yaiza; Lázaro, Melisa; Viguera Rincón, Ana Rosa; Montes Burgos, Lidia Ruth ORCID; Valle Rodríguez, Mikel Karmel; Goñi Urcelay, Félix María ORCID; Alonso Izquierdo, Alicia ORCID (Elsevier, 2022-05-23)
      Autophagy is a process in which parts of the eukaryotic cell are selectively degraded in the lysosome. The materials to be catabolized are first surrounded by a double-membrane structure, the autophagosome. Autophagosome ...
    • Thumbnail

      Biophysical properties of sphingolipid-deficient cell membranes 

      Gutiérrez Monasterio, Bingen ORCID (2021-09-30)
      Esta tesis pretende explorar la función de los esfingolípidos en el crecimiento celular y en la composición y las propiedades físicas de las membranas. Para ello se han utilizado células que poseen una síntesis limitada ...
    • Thumbnail

      Birth and Early Steps of the Organization of Biophysics in Spain 

      Goñi Urcelay, Félix María ORCID (MDPI, 2022-11-19)
      In the 1960s, Biophysics was an unheard of scientific field in Spain, and even outside Spain, the distinction between Biophysics and Molecular Biology was not clear at the time. This paper describes briefly the developments ...
    • Thumbnail

      C24:0 and C24:1 sphingolipids in cholesterol-containing, five- and six-component lipid membranes 

      González Ramírez, Emilio José; García Arribas, Aritz ORCID; Sot, Jesús; Goñi Urcelay, Félix María ORCID; Alonso Izquierdo, Alicia ORCID (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 ...
    • Thumbnail

      Ceramide-enriched membrane domains in red blood cells and the mechanism of sphingomyelinase-induced hot-cold haemolysis 

      Montes Burgos, Lidia Ruth ORCID; López Jiménez, David ORCID; Sot, Jesus ORCID; Bagatolli, Luis ORCID; Stonehouse, Martin J.; Vasil, Michael L.; Wu, Bill X.; Hannun, Yusuf A.; Goñi Urcelay, Félix María ORCID; Alonso Izquierdo, Alicia ORCID (American Chemical Society, 2008-10-28)
      Hot-cold hemolysis is the phenomenon whereby red blood cells, preincubated at 37 °C in the presence of certain agents, undergo rapid hemolysis when transferred to 4 °C. The mechanism of this phenomenon is not understood. ...
    • Thumbnail

      Cerebro, lipidómica y alzheimer: estudio de biomarcadores y neuroimagen en personas sanas. 

      Iriondo Juaristi, Ane ORCID (2020-07-16)
      El objetivo general de esta tesis es ampliar el conocimiento sobre la fisiopatología de la EA e investigar la posible interrelación existente entre tres hechos biológicos cerebrales que podrían estar involucrados en los ...
    • Thumbnail

      Changes in Membrane Organization upon Spontaneous Insertion of 2‑Hydroxylated Unsaturated Fatty Acids in the Lipid Bilayer 

      Khmelinskaia, Alena; Ibarguren, Maitane ORCID; de Almeida, Rodrigro F.M.; López Jiménez, David ORCID; Paixao, Vanda A.; Ahyayauch, Hasna; Goñi Urcelay, Félix María ORCID; Escriba, Pablo ORCID (American Chemical Society, 2014-02-03)
      Recent research regarding 2-hydroxylated fatty acids (2OHFAs) showed clear evidence of their benefits in the treatment of cancer, inflammation, and neurodegenerative disorders such as Alzheimer’s disease. Monolayer ...
    • Thumbnail

      CHO/LY-B Cell Growth under Limiting Sphingolipid Supply: Correlation between Lipid Composition and Biophysical Properties of Sphingolipid-Restricted Cell Membranes 

      Gutiérrez Monasterio, Bingen ORCID; Jiménez Rojo, Noemi; García Arribas, Aritz ORCID; Riezman, Howard; Goñi Urcelay, Félix María ORCID; Alonso Izquierdo, Alicia ORCID (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 ...
    • Thumbnail

      Determinación estructural de virus con envuelta lipída mediante crio-microscopía electrónica. 

      Santos Pérez, Isaac (2020-02-10)
      Viruses are parasitic biological agents that in the virion state contain differentmorphologies and assembly organisations. In some virions, a lipid membrane of cellularorigin is a structural component of the infectious ...
    • Thumbnail

      DNA y herencia: Problemas éticos y aplicaciones médico-legales 

      Goñi Urcelay, Félix María ORCID (Instituto Vasco de Criminología, 1992-12)
      Exposición de los aspectos positivos y negativos de los recientes avances de la biología, con especial referencia a los aspectos médico-legales.
    • Thumbnail

      Effect of ATG12–ATG5-ATG16L1 autophagy E3-like complex on the ability of LC3/GABARAP proteins to induce vesicle tethering and fusion 

      Iriondo Nagore, Marina; Etxaniz Iriondo, Asier; Varela Fernández, Yaiza; Ballesteros Rivero, Uxue; Lázaro, Melisa; Valle, Mikel; Fracchiolla, Dorotea; Martens, Sascha; Montes Burgos, Lidia Ruth ORCID; Goñi Urcelay, Félix María ORCID; Alonso Izquierdo, Alicia ORCID (Springer, 2023-02)
      In macroautophagy, the autophagosome (AP) engulfs portions of cytoplasm to allow their lysosomal degradation. AP formation in humans requires the concerted action of the ATG12 and LC3/GABARAP conjugation systems. The ...
    • Thumbnail

      Effects of a N-Maleimide-derivatized Phosphatidylethanolamine on the Architecture and Properties of Lipid Bilayers 

      Ballesteros Rivero, Uxue; González Ramírez, Emilio José; De la Arada Echevarría, Igor ORCID; Sot, Jesús; Etxaniz Iriondo, Asier; Goñi Urcelay, Félix María ORCID; Alonso Izquierdo, Alicia ORCID; Montes Burgos, Lidia Ruth ORCID (MDPI, 2023-11-21)
      <i>N</i>-maleimide-derivatized phospholipids are often used to facilitate protein anchoring to membranes. In autophagy studies, this is applied to the covalent binding of Atg8, an autophagy protein, to a phosphatidylethanolamine ...
    • Thumbnail

      Erythrocyte Membrane Nanomechanical Rigidity Is Decreased in Obese Patients 

      Sot, Jesús; García Arribas, Aritz ORCID; Abad García, Beatriz; Arranz, Sara; Portune, Kevin; Andrade, Fernando; Martín Nieto, Alicia; Velasco, Olaia; Arana, Eunate; Tueros, Itziar; Ferreri, Carla; Gaztambide Sáenz, María Sonia; Goñi Urcelay, Félix María ORCID; Castaño González, Luis Antonio ORCID; Alonso Izquierdo, Alicia ORCID (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 ...
    • Thumbnail

      Esfingolipidoak eta kolesterola, egitura lipidoak baino gehiago 

      Gutiérrez Monasterio, Bingen ORCID; García Arribas, Aritz ORCID; Alonso Izquierdo, Alicia ORCID; Goñi Urcelay, Félix María ORCID (Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2019)
      Sphingolipids contain in their polar heads chemical groups allowing them to establish a complex network of H-bonds through different –OH and –NH–groups with other lipids in the bilayer. In the recent years the specific ...
    • Thumbnail

      Estudios del efecto de la radiación ionizante sobre la permeabilidad de membranas modelo 

      Izquierdo Velasco, Lara (2016-04-27)
      La membrana biológica es una barrera hidrofóbica semipermeable de naturaleza compleja, cuya estructura consiste en una doble capa de moléculas de lípidos en la cual las proteínas están insertadas. Existen diferentes modelos ...