Browsing by Author "f48e159e-e2ee-4a9d-be85-de4327543e41"
Now showing items 1-12 of 12
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Toledo, Héctor; Valenzuela, Manuel; Rivas, Ana; Jerez, Carlos A. (2002)To determine the existence of an acid stress response in Helicobacter pylori the global changes in the proteins synthesized by the bacterium when subjected to an acid stress were studied. H. pylori ATCC43504 previously ...
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Osorio, Gonzalo; Jerez, Carlos A. (Microbiology Society, 1996)The adaptive response of the archaeon Sulhlobus acidocaldarius BC65 to phosphate starvation was studied. When cells were subjected to phosphate limitation, their growth was affected. In addition, the levels of synthesis andlor ...
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Mora Ramírez, Pablo Eduardo; Toledo, Héctor; Dominique Guiliani, Nicolas Simon; Jerez, Carlos A. (2002)By proteomic analysis we found a 21-kDa protein (P21) from Acidithiobacillus ferrooxidans ATCC 19859 whose synthesis was greatly increased by growth of the bacteria in pyrite, thiosulfate, elemental sulfur, CuS, and ZnS ...
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Varela, Patricia; Levicán, Gloria; Rivera, Francisco; Jerez, Carlos A. (1998)Thiobacillus ferrooxidans is one of the chemolithoautotrophic bacteria important in industrial biomining operations. During the process of ore bioleaching, the microorganisms are subjected to several stressing conditions, ...
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Mora Ramírez, Pablo Eduardo; Dominique Guiliani, Nicolas Simon; Valenzuela, Lissette; Beard, Simon; Jerez, Carlos A. (2004)A set of proteins that changed their levels of synthesis during growth of Acidithiobacillus ferrooxidans ATCC 19859 on metal sulfides, thiosulfate, elemental sulfur, and ferrous iron was characterized by using two-dimensional ...
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Farah, Carolina; Vera, Mario; Morin, Danièle; Haras, Dominique; Jerez, Carlos A.; Dominique Guiliani, Nicolas Simon (American Society for Microbiology, 2005)Acidithiobacillus ferrooxidans is one of the main acidophilic chemolithotrophic bacteria involved in the bioleaching of metal sulfide ores. The bacterium-mineral interaction requires the development of biofilms, whose ...
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Beard, Simón; Paradela, Alberto; Albar, Juan P.; Jerez, Carlos A. (Frontiers Research Foundation, 2011)Production of sulfur globules during sulfide or thiosulfate oxidation is a characteristic feature of some sulfur bacteria. Although their generation has been reported in Acidithiobacillus ferrooxidans, its mechanism of ...
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Vargas Straube, María José; Beard Bórquez, Simón; Norambuena, Rodrigo; Paradela, Alberto; Vera, Mario; Jerez, Carlos A. (Elsevier, 2020)Acidithiobacillus ferrooxidans is an acidophilic bacterium able to grow in environments with high concentrations of metals. It is a chemolithoautotroph able to form biofilms on the surface of solid minerals to obtain its ...
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Toledo, Héctor; Jerez, Carlos A. (1985)The in vitro methylation of the elongation factor EF-Tu from Escherichia coli was investigated. The methylation of newly synthesized EF-Tu was obtained using lambda rifd 18 DNA as template and S-adenosyl [methyl-3H]methionine ...
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Toledo, Héctor; Jerez, Carlos A. (1989)The role of methylation of elongation factor EF-Tu from Escherichia coli was investigated. The methylated factor was obtained from cells harvested at the late stationary growth phase. Submethylated forms of the factor were ...
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Ramos-Zúñiga, Javiera; Gallardo, Sebastián; Martínez-Bussenius, Cristóbal; Norambuena, Rodrigo; Navarro, Claudio A.; Paradela, Alberto; Jerez, Carlos A. (Elsevier B.V., 2019)© 2018 Elsevier B.V. Cadmium is a heavy metal present in contaminated soils. It has no biological role but when entering cells generates DNA damage, overexpression of stress response proteins and misfolded proteins, amongst ...
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Cardona, Silvia T.; Chávez, Francisco P.; Jerez, Carlos A. (2002)Inorganic polyphosphate (polyP) polymers are widely distributed in all kinds of organisms. Although the presence of polyP in members of the domain Archaea has been described, at present nothing is known about the enzymology ...