Browsing by Author "Ramon Portés, Eva"
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Alteraciones genéticas asociadas a retinosis pigmentaria en proteínas del ciclo visual I. Aspectos generales y clasificación
Valle Mendoza, Luis Javier del; Garriga Solé, Pere; Bosch Presegué, Laia; Götzens García, Guadalupe; Urtubia Vicario, César; Ramon Portés, Eva (PUNTEX, 2002-11)
Article
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Alteraciones genéticas asociadas a retinosis pigmentaria en proteínas del ciclo visual II. Descripción de las proteínas más relevantes
Valle Mendoza, Luis Javier del; Garriga Solé, Pere; Bosch Presegué, Laia; Götzens García, Guadalupe; Urtubia Vicario, César; Ramon Portés, Eva (PUNTEX, 2002-12)
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Alterations in the photoactivation pathway of rhodopsin mutants associated with retinitis pigmentosa
Bosch Presegué, Laia; Ramon Portés, Eva; Toledo, Darwin; Cordomí Montoya, Arnau; Garriga Solé, Pere (2011-05)
Article
Restricted access - publisher's policyThe visual photoreceptor rhodopsin undergoes a series of conformational changes upon light activation, eventually leading to the active metarhodopsin II conformation, which is able to bind and activate the G-protein, transducin. ... -
Análisis molecular de mutaciones en proteinas de células fotorreceptoras asociadas a retinosis pigmentaria
Urtubia Vicario, César; Ramon Portés, Eva; Valle Mendoza, Luis Javier del; Götzens García, Guadalupe; Garriga Solé, Pere (ICM, 2002-12)
Article
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Antibody-enabled antimicrobial nanocapsules for selective elimination of Staphylococcus aureus
Ivanova, Kristina Dimitrova; Ivanova, Aleksandra Asenova; Ramon Portés, Eva; Hoyo Pérez, Javier; Sanchez-Gomez, Susana; Tzanov, Tzanko (2020-07-16)
Article
Open AccessTargeted bactericide nanosystems hold significant promise to improve the efficacy of existing antimicrobials for treatment of severe bacterial infections, minimizing the side effects and lowering the risk of antibiotic ... -
Beyond spectral tuning: human cone visual pigments adopt different transient conformations for chromophore regeneration
Srinivasan, Sundaramoorthy; Cordomí, Arnau; Ramon Portés, Eva; Garriga Solé, Pere (2016-03)
Article
Open AccessHuman red and green visual pigments are seven transmembrane receptors of cone photoreceptor cells of the retina that mediate color vision. These pigments share a very high degree of homology and have been assumed to feature ... -
Bio-based nano-enabled cosmetic formulations for the treatment of cutibacterium acnes-associated skin infections
Ivanova, Kristina Dimitrova; Ramon Portés, Eva; Ivanova, Aleksandra Asenova; Sanchez-Gomez, Susana; Tzanov, Tzanko (2023-02-09)
Article
Open AccessAcne is a common chronic skin condition with serious physical and psychosocial consequences. In some cases, the appearance of pimples, whiteheads, or blackheads on the face, neck, and back may lead to scarring, disfiguring, ... -
Docosahexaenoic acid phospholipid differentially modulates the conformation of G90V and N55K rhodopsin mutants associated with retinitis pigmentosa
Dong, Xiaoyun; Herrera Hernandez, Maria Guadalupe; Ramon Portés, Eva; Garriga Solé, Pere (2017-05-01)
Article
Open AccessRhodopsin is the visual photoreceptor of the retinal rod cells that mediates dim light vision and a prototypical member of the G protein-coupled receptor superfamily. The structural stability and functional performance of ... -
Effect of trace metal Ions on the conformational stability of the visual photoreceptor rhodopsin
Wang, Feifei; Fernández González, Pol; Ramon Portés, Eva; Gómez Gutiérrez, Patricia; Morillo Cazorla, Margarita; Garriga Solé, Pere (Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-01)
Article
Open AccessTrace metals are essential elements that play key roles in a number of biochemical processes governing human visual physiology in health and disease. Several trace metals, such as zinc, have been shown to play important ... -
Estructura tridimensional de la rodopsina
Valle Mendoza, Luis Javier del; Garriga Solé, Pere; Götzens García, Guadalupe; Urtubia Vicario, César; Ramon Portés, Eva; Gómez, Jesús (PUNTEX, 2002-06)
Article
Open AccessLa rodopsina es un fotopigmento localizado en las membranas discoidales de los fotorreceptores de la retina de los vertebrados que desempeña una función central en el complejo fenómeno de la visión. Determinadas alteraciones ... -
Estudi de l'efecte de l'entorn i de mutacions en l'estructura i estabilitat del receptor acoblat a proteïna G rodopsina
Ramon Portés, Eva (Universitat Politècnica de Catalunya, 2005-01-01)
Doctoral thesis
Open AccessLa rodopsina és el fotoreceptor visual responsable de la visió a baixa intensitat lumínica que es troba en les cèl·lules bastó de la retina. Aquesta proteïna és el model per excel·lència de la superfamília de receptors ... -
Flavonoid allosteric modulation of mutated visual rhodopsin associated with retinitis pigmentosa
Herrera Hernández, María Guadalupe; Ramon Portés, Eva; Lupala, Cecylia Severin; Tena Campos, Mercè; Pérez González, Juan Jesús; Garriga Solé, Pere (Macmillan Publishers, 2017-12-01)
Article
Open AccessDietary flavonoids exhibit many biologically-relevant functions and can potentially have beneficial effects in the treatment of pathological conditions. In spite of its well known antioxidant properties, scarce structural ... -
Functional role of positively selected amino acid substitutions in mammalian rhodopsin evolution
Fernandez-Sampedro, Miguel angel; Invergo, Brandon M.; Ramon Portés, Eva; Bertranpetit, Jaume; Garriga Solé, Pere (Macmillan Publishers, 2016-02-11)
Article
Open AccessVisual rhodopsins are membrane proteins that function as light photoreceptors in the vertebrate retina. Specific amino acids have been positively selected in visual pigments during mammal evolution, which, as products of ... -
Human blue cone opsin regeneration involves secondary retinal binding with analog specificity
Srinivasan, Sundaramoorthy; Fernández Sampedro, Miguel Ángel; Morillo Cazorla, Margarita; Ramon Portés, Eva; Jiménez Rosés, Mireia; Cordomi, Arnau; Garriga Solé, Pere (2018-03-27)
Article
Open AccessHuman color vision is mediated by the red, green, and blue cone visual pigments. Cone opsins are G-protein-coupled receptors consisting of an opsin apoprotein covalently linked to the 11-cis-retinal chromophore. All visual ... -
Hydrophobic amino acids at the cytoplasmic ends of helices 3 and 6 of rhodopsin conjointly modulate transducin activation
Bosch Presegué, Laia; Iarriccio Silva, Laura; Aguila Cerda, Mónica; Toledo, Darwin; Ramon Portés, Eva; Cordomí Montoya, Arnau; Garriga Solé, Pere (2011-02-15)
Article
Restricted access - publisher's policyRhodopsin is the visual photoreceptor responsible for dim light vision. This receptor is located in the rod cell of the retina and is a prototypical member of the G-protein-coupled receptor superfamily. The structural ... -
Innovative approaches for controlling clinically relevant biofilms: current trends and future prospects
Ivanova, Kristina Dimitrova; Tzanov, Tzanko; Hoyo Pérez, Javier; Ramon Portés, Eva (2017-01-05)
Article
Open AccessBacteria that colonize and form biofilms on living tissues and medical devices are a global healthcare concern. They cause life threatening infections and are associated with increased mortality and morbidity in the ... -
Integrated biofilm dispersion and virulence responsiveness for targeted treatment of pseudomonas aeruginosa infection in lungs
Ivanova, Kristina Dimitrova; Ramon Portés, Eva; Wnorowska, Urszula; Todorova, Katerina; Ivanova, Aleksandra Asenova; Bastos-Arrieta, Julio; Puertas Segura, Antonio Jesús; Deptula, Piotr; Damyanova, Tsvetozara; Paunova-Krasteva, Tsvetelina; Bucki, Robert; Ivanov, Ivan; Tzanov, Tzanko (2024-11-12)
Article
Open AccessThe self-organization of microbes into biofilms provides multiple benefits including tolerance to mechanical stress and resistance to immune defences and antibiotics. Coupled to a compromised mucociliary function, these ... -
Mecanismo de activación de la rodopsina: unión y activación de la proteína-G transducina
Valle Mendoza, Luis Javier del; Garriga Solé, Pere; Bosch Presegué, Laia; Ramon Portés, Eva; Götzens García, Guadalupe; Urtubia Vicario, César (PUNTEX, 2002-11)
Article
Open AccessLa rodopsina es la proteína fotorreceptora de la retina que pertenece a la superfamilia de receptores acoplados a proteína G (GPRC). Ésta es una de las familias de proteínas transductoras de señal más amplia y de gran ... -
Mercury-induced dark-state instability and photobleaching alterations of the visual G-protein coupled receptor rhodopsin
Morillo Cazorla, Margarita; Toledo Gonzalez, Darwin; Pérez González, Juan Jesús; Ramon Portés, Eva; Garriga Solé, Pere (2014-07-01)
Article
Restricted access - publisher's policyMercuric compounds were previously shown to affect the visual phototransduction cascade, and this could result in vision impairment. We have analyzed the effect of mercuric chloride on the structure and stability of the ... -
Molecular mechanisms of retinal toxicity induced by light and chemical damage
Herrera Hernández, María Guadalupe; Ramon Portés, Eva; Garriga Solé, Pere (Elsevier, 2015-10-11)
Part of book or chapter of book
Restricted access - publisher's policyIn recent years, important advances have been made to decipher the multiple defense mechanisms of the retina (a highly specialized sense tissue) against several extreme conditions, such as constant exposure to systemic ...