Browsing by Author "fe5e5535-1cdc-4a44-9e70-a45a3f274aa8"

Now showing items 1-12 of 12

    • A tRNA(Glu) that uncouples protein and tetrapyrrole biosynthesis 
      Levicán, Gloria; Katz, Assaf; Valenzuela, Patricio; Söll, Dieter; Orellana, Omar (2005)
      Glu-tRNA is either bound to elongation factor Tu to enter protein synthesis or is reduced by glutamyl-tRNA reductase (GluTR) in the first step of tetrapyrrole biosynthesis in most bacteria, archaea and in chloroplasts. ...
    • An immunological strategy to monitor in situ the phosphate starvation state in Thiobacillus ferrooxidans 
      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, ...
    • Cold-active pectinolytic activity produced by filamentous fungi associated with Antarctic marine sponges 
      Poveda, Gabriela; Gil Durán, Carlos; Vaca Cerezo, Inmaculada; Levicán, Gloria; Chávez, Renato (2018)
      BACKGROUND: Pectinase enzymes catalyze the breakdown of pectin, a key component of the plant cell wall. At industrial level, pectinases are used in diverse applications, especially in food-processing industry. Currently, ...
    • Cold-active xylanase produced by fungi associated with Antarctic marine sponges 
      Del-Cid, Abdiel; Ubilla, Pamela; Ravanal, María Cristina; Medina, Exequiel; Vaca Cerezo, Inmaculada; Levicán, Gloria; Eyzaguirre, Jaime; Chávez, Renato (2014)
      Despite their potential biotechnological applications, cold-active xylanolytic enzymes have been poorly studied. In this work, 38 fungi isolated from marine sponges collected in King George Island, Antarctica, were screened ...
    • Deciphering the role of multiple thioredoxin fold proteins of leptospirillum sp. in oxidative stress tolerance 
      González Aristegui, Daniela; Álamos, Pamela; Rivero, Matías; Orellana Orellana, Omar; Norambuena, Javiera; Chávez, Renato; Levicán, Gloria (MDPI, 2020)
      Thioredoxin fold proteins (TFPs) form a family of diverse proteins involved in thiol/disulfide exchange in cells from all domains of life. Leptospirillum spp. are bioleaching bacteria naturally exposed to extreme conditions ...
    • Differential expression of two bc1 complexes in the strict acidophilic chemolithoautotrophic bacterium ... 
      Bruscella, Patrice; Appia-Ayme, Corinne; Levicán, Gloria; Ratouchniak, Jeanine; Jedlicki,; Holmes, David S.; Bonnefoy, Violaine (2007)
      Three strains of the strict acidophilic chemolithoautotrophic Acidithiobacillus ferrooxidans, including the type strain ATCC 23270, contain a petllABC gene cluster that encodes the three proteins, cytochrome c1, cytochrome ...
    • Effect of hydrogen peroxide on the biosynthesis of heme and proteins: Potential implications for the ... 
      Farah, Carolina; Levicán, Gloria; Ibba, Michael; Orellana, Omar (MDPI AG, 2014)
      © 2014 by the authors; licensee MDPI, Basel, Switzerland. Glutamyl-tRNA (Glu-tRNAGlu) is the common substrate for both protein translation and heme biosynthesis via the C5 pathway. Under normal conditions, an adequate ...
    • Functionality of tRNAs encoded in a mobile genetic element from an acidophilic bacterium 
      Alamos, Pamela; Tello, Mario; Quirós Bustamante, Paula; Gutiérrez, Fernanda; Shmaryahu, Amir; Maldonado, Juan; Levicán, Gloria; Orellana, Omar (Taylor and Francis Inc., 2018)
      © 2018, © 2018 Taylor & Francis Group, LLC. The genome of the acidophilic, bioleaching bacterium Acidithiobacillus ferrooxidans, strain ATCC 23270, contains 95 predicted tRNA genes. Thirty-six of these genes (all 20 species) ...
    • Production of a heterologous recombinant protein using fragments of the glyceraldehyde-3-phosphate dehydrogenase ... 
      Espinosa, Yeison; Trebotich, Jovanka; Sepúlveda, Francisco; Cadena, Jeisson; Vargas Straube, María José; Vaca Cerezo, Inmaculada; Bull, Paulina; Levicán, Gloria; Chávez, Renato (Springer, 2011)
      The biotechnological applications of cheese-ripening fungi have been limited by a lack of genetics tools, in particular the identification and characterization of suitable promoters for protein expression. In this study, ...
    • Regulation of a glutamyl-tRNA synthetase by the heme status 
      Levicán, Gloria; Katz, Assaf; De Armas, Merly; Núñez, Harold; Orellana, Omar (2007)
      Glutamyl-tRNA (Glu-tRNA), formed by Glu-tRNA synthetase (GluRS), is a substrate for protein biosynthesis and tetrapyrrole formation by the C 5 pathway. In this route Glu-tRMA is transformed to δ-aminolevulinic acid, the ...
    • Role of sfk1 gene in the filamentous fungus Penicillium roqueforti 
      Torrent, Claudia; Gil Durán, Carlos; Rojas Aedo, Juan F.; Medina, Exequiel; Vaca Cerezo, Inmaculada; Castro, Paulo; García Rico, Ramón O.; Cotoras, Milena; Mendoza, Leonora; Levicán, Gloria; Chávez, Renato (Frontiers Media S.A., 2017)
      © 2017 Torrent, Gil-Durán, Rojas-Aedo, Medina, Vaca, Castro, García-Rico, Cotoras, Mendoza, Levicán and Chávez. The sfk1 (suppressor of four kinase) gene has been mainly studied in Saccharomyces cerevisiae, where it was ...
    • The biosynthetic gene cluster for andrastin A in Penicillium roqueforti 
      Rojas Aedo, Juan F.; Gil Durán, Carlos; Del-Cid, Abdiel; Valdés, Natalia; Álamos, Pamela; Vaca Cerezo, Inmaculada; García Rico, Ramón O.; Levicán, Gloria; Tello, Mario; Chávez, Renato (Frontiers Research Foundation, 2017)
      © 2017 Rojas-Aedo, Gil-Durán, Del-Cid, Valdés, álamos, Vaca, García-Rico, Levicán, Tello and Chávez. Penicillium roqueforti is a filamentous fungus involved in the ripening of several kinds of blue cheeses. In addition, ...