Browsing by Title Facultad de Ciencias
Now showing items 3778-3797 of 8178
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(Universidad de Chile, 2009)La microcina E492 es una bacteriocina que forma canales iónicos en la membrana citoplasmática de las células sensibles, e in vitro en membranas artificiales. Los determinantes genéticos necesarios para su producción, ...
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(Universidad de Chile, 2016)
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(Universidad de Chile, 2009)
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(Universisdad de Chile, 2003)Desde que la respuesta de tolerancia al ácido (ATR) se identifico en Salmonella tyhymurium y Escherichia coli,este mecanismo de adaptación se ha encontrado en una gran cantidad de bacterias Gram positivas y Gram negativas. ...
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(Universidad de Chile, 2020)El objetivo de este proyecto fue indagar en el rol del sistema eferente auditivo en pacientes con tinnitus, la percepción de un sonido en ausencia de estímulo acústico externo. El sistema eferente auditivo es una red ...
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(Vrije Universiteit Brussel, 2017)
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(Public Library of Science, 2014)Phytoene synthase (PSY) has been shown to catalyze the first committed and rate-limiting step of carotenogenesis in several crop species, including Brassica napus L. Due to its pivotal role, PSY has been a prime target for ...
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(Elsevier, 2020)Carotenoids are plastid isoprenoid pigments that play critical roles in light harvesting, photoprotection, and phytohormone biosynthesis. They are also vitamin-A precursors and antioxidant molecules important for human ...
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(PLOS One, 2014)The yeast Xanthophyllomyces dendrorhous synthesizes the carotenoid astaxanthin, which has applications in biotechnology because of its antioxidant and pigmentation properties. However, wild-type strains produce too low ...
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(BioMed Central, 2016)Background: The basidiomycetous yeast Xanthophyllomyces dendrorhous has been described as a potential biofactory for terpenoid-derived compounds due to its ability to synthesize astaxanthin. Functional knowledge of the ...
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(2004)Research regarding the interactions between the endothelium and immune cells has undergone a significant expansion during the past decade. Major shifts of emphasis have been the norm, from the production of a detail catalog ...
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(The American Association of Immunologists, 2008)Autoantibody neuromyelitis optica-IgG (NMO-IgG) recognizing aquaporin-4 (AQP4) is implicated as playing a central role in the physiopathology of NMO. The aim of this in vitro-based study was to characterize functional ...
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(Universidad de Chile, 2022)Soils are heterogeneous and complex environments, and bacterial competition, cooperation, and communication dynamics there are mediated through the secretion of natural products (NPs) synthesized in specialized pathways ...
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(2012)The carotid bodies (CBs) are chemosensory organs that respond to hypoxemia with transmitter neurosecretion, leading to a respiratory reflex response. It has been proposed that acetylcholine is a key regulator of transmitter ...
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(1995)Tau proteins play major regulatory roles in the organization and integrity of the cytoskeletal network. In neurons, a specific axonal compartmentalization of tau has been shown. However, recent studies demonstrate that tau ...
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(Oxford university press, 2017)Low pollinator visitation in harsh environments may lead to pollen limitation which can threaten population persistence. Consequently, avoidance of pollen limitation is expected in outcrossing species subjected to habitually ...
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(Springer Verlag, 2017)© 2017, Springer-Verlag Berlin Heidelberg. The activation mechanism of dopamine receptors is unknown. The amino acids S5.42, S5.43, and S5.46 located in helix 5 appear to be crucial, but their specific roles in receptor ...
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(2007)2,5-Dimethoxy-4-substituted phenylisopropylamines and phenethylamines are 5-hydroxytryptamine (serotonin) (5-HT)(2A/2C) agonists. The former are partial to full agonists, whereas the latter are partial to weak agonists. ...
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(The American Society for Pharmacology and Experimental Therapeutics, 2007-02-28)2,5-Dimethoxy-4-substituted phenylisopropylamines and phenethylamines are 5-hydroxytryptamine (serotonin) (5-HT)2A/2C agonists. The former are partial to full agonists, whereas the latter are partial to weak agonists. ...
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(COLD SPRING HARBOR LAB PRESS, 2010-05-25)Recent studies of the genome architecture of vertebrates have uncovered two unforeseen aspects of its organization. First, large regions of the genome, called gene deserts, are devoid of protein-coding sequences and have ...