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Omar Orlando Orellana Orellana

Profesor Titular

FACULTAD DE MEDICINA, UNIVERSIDAD DE CHILE

Santiago, Chile

Estructura y función de ácidos ribonucleicos. Control de la traducción por sRNAs y por uso de codones.

Bioquímica, UNIVERSIDAD DE CHILE. Chile, 1983

Profesor Titular Full Time

Universidad de Chile

Santiago, Chile

1977 - At present


Deciphering the Role of Multiple Thioredoxin Fold Proteins of Leptospirillum sp. in Oxidative Stress Tolerance Norambuena J. Article ISI SCOPUS International Journal of Molecular Sciences (2020)
The Type IV Secretion System of ICEAfe1: Formation of a Conjugative Pilus in Acidithiobacillus ferrooxidans Orellana, Omar Article ISI SCOPUS Frontiers in Microbiology (2019)
Codon usage and modular interactions between messenger RNA coding regions and small RNAs in Escherichia coli Avalos, F; Orellaru, O Article ISI SCOPUS BMC GENOMICS (2018)
Complete genome sequence of the bioleaching bacterium Leptospirillum sp group II strain CF-1 Ferrer A.; Bunk, B; Spröer, C; Biedendieck R.; Valdes N.; Jahn M.; Jahn, D.; Orellana O.; LevicÃ¡n G. Article ISI SCOPUS JOURNAL OF BIOTECHNOLOGY (2016)
Effect of Hydrogen Peroxide on the Biosynthesis of Heme and Proteins: Potential Implications for the Partitioning of Glu-tRNA(Glu) between These Pathways Farah C.; LevicÃ¡n G.; Ibba M.; Orellana O. Article ISI SCOPUS INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2014)
Toxin-Antitoxin Systems in the Mobile Genome of Acidithiobacillus ferrooxidans Bustamante P.; Tello M.; Orellana O. Article ISI SCOPUS PLOS ONE (2014)
Comparative Genomic Analysis Reveals Novel Facts about Leptospirillum spp. Cytochromes LevicÃ¡n G.; ChÃ¡vez R.; Orellana O.; Moreno-Paz M.; Parro V. Article ISI SCOPUS Journal of Molecular Microbiology and Biotechnology (2012)
ICEAfe1, an Actively Excising Genetic Element from the Biomining Bacterium Acidithiobacillus ferrooxidans Bustamante P.; Covarrubias P.C.; LevicÃ¡n G.; Katz A.; Tapia P.; Holmes D.; Quatrini R.; Orellana O. Article ISI SCOPUS Journal of Molecular Microbiology and Biotechnology (2012)
Cellular levels of heme affect the activity of dimeric glutamyl-tRNA reductase de Armas-Ricard M.; Katz A.; Orellana O.; LevicÃ¡n G.; Moser J.; Jahn, D. Article ISI SCOPUS Biochemical and Biophysical Research Communications (2011)
Redox status affects the catalytic activity of glutamyl-tRNA synthetase Katz A.; Banerjee R.; de Armas, M.; Ibba M.; Orellana O. Article ISI SCOPUS Biochemical and Biophysical Research Communications (2010)
Regulation of a glutamyl-tRNA synthetase by the heme status LevicÃ¡n G.; Katz A.; de Armas, M.; Núñez, H; Orellana O. Article ISI SCOPUS PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2007)
Insights into the iron and sulfur energetic metabolism of Acidithiobacillus ferrooxidans by microarray transcriptome profiling Quatrini R.; Appia-Ayme, C; Denis Y.; Ratouchniak, J; Veloso F.; Valdes J.; Lefimil C.; Silver, S; Roberto, F; Orellana O.; et al. Article ISI SCOPUS Hydrometallurgy (2006)
A tRNA(Glu) that uncouples protein and tetrapyrrole biosynthesis LevicÃ¡n G.; Katz A.; Valenzuela P.; Soll, D; Orellana O. Article ISI SCOPUS FEBS LETTERS (2005)
In vivo formation of glutamyl-tRNA(Gln) in Escherichia coli by heterologous glutamyl-tRNA synthetases Nunez, HN; Lefimil C.; Min, B; Soll, D; Orellana O. Article ISI FEBS LETTERS (2004)
Coevolution of an aminoacyl-tRNA synthetase with its tRNA substrates Ahel, I; Orellana O.; Tumbula-Hansen, D; Krieger, R; Daniels, L; Soll, D Article ISI SCOPUS PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2003)
A dispensable peptide from Acidithiobacillus ferrooxidans tryptophanyl-tRNA synthetase affects tRNA binding Zuñiga, R; Salazar J.; Canales M.; Orellana O. Article ISI SCOPUS FEBS LETTERS (2002)
A dual-specific Glu-tRNA(Gln) and Asp-tRNA(Asn) amidotransferase is involved in decoding glutamine and asparagine codons in Acidithiobacillus ferrooxidans Zuñiga, R; Raczniak, G; Becker H.; Soll, D; Orellana O. Article ISI SCOPUS FEBS LETTERS (2001)
Conserved amino acids near the carboxy terminus of bacterial tyrosyl-tRNA synthetase are involved in tRNA and Tyr-AMP binding Zuñiga, R; Lefimil C.; Soll, D; Orellana O. Article ISI SCOPUS FEBS LETTERS (2001)


Glutamyl-tRNA in Bacteria. Multiple Identities for Multiple Functions Katz A.; Orellana O. Review ISI SCOPUS Croatica Chemica Acta (2012)

1

Juan Salazar

Profesor Asociado

Instituto de Ciencias Biomédicas

UNIVERSIDAD DE CHILE, FACULTAD DE MEDICINA

Santiago, Chile

2

David Holmes

Head, Laboratory of Bioinformatics and Genome Biology

Center for Bioinformatics and Genome Biology

FUNDACION CIENCIA & VIDA

Santiago, Chile

2

Renato Chavez

Full Professor

Biology

UNIVERSIDAD DE SANTIAGO DE CHILE

Santiago, Chile

19

Omar Orellana

Profesor Titular

Programa de Biología Celular y Molecular

FACULTAD DE MEDICINA, UNIVERSIDAD DE CHILE

Santiago, Chile

8

Gloria Levican

Académica Profesora Titular

Departamento de Biología

UNIVERSIDAD DE SANTIAGO DE CHILE

Santiago, Chile

1

Harold Nuñez

PostDoc

FUNDACIÓN CIENCIA PARA LA VIDA

Santiago, Chile

1

Jorge Valdes

PROFESOR ASOCIADO

CENTRO DE BIOINFORMÁTICA Y BIOLOGÍA INTEGRATIVA

Universidad Andrés Bello

Santiago, Chile

2

Paula Bustamante

docente-investigador

Instituto de Ciencias Biomédicas

Universidad Autónoma de Chile

Santiago, Chile

3

Claudia Lefimil

Profesor Asistente

Instituto de Investigación en Ciencias odontológicas

UNIVERSIDAD DE CHILE

Santiago, Chile

3

Raquel Quatrini

Research Associate

Fundación Ciencia & Vida

Santiago, Chile

2

Mario Tello

Académico

Biología

Universidad de Santiago de Chile

Santiago, Chile

1

Alonso Ferrer

Académico regular

Universidad Mayor de Chile

Santiago, Chile

1

Sebastián Valenzuela

Director de Area Veterinaria

Area Veterinaria

Fundación Ciencia para la Vida

Santiago, Chile

1

Ana Moya

Profesor Asistente

Departamento de Informática y Computación

Universidad Tecnológica Metropolitana

Ñuñoa, Chile

2

Merly de Armas

Profesor

Universidad de Aysén

Coyhaique, Chile

1

Natalia Valdés

Investigador

Universidad de Santiago de Chile

Santiago, Chile

1

Paulo Covarrubias

Profesional

Biomédico

Instituto de Salud Pública

Santiago, Chile

1

RODRIGO FLORES

Investigador

Biología Celular y Molecular

Universidad de Chile

Macul, Chile

1

Claudia Pareja

Investigadora de Postdoctorado

Departamento de Hematología-Oncología

Pontificia Universidad Católica de Chile

Santiago, Chile

1

Javiera Norambuena

Profesora Asociada

Ingeniería

Universidad de Playa Ancha de Ciencias de la Educación

Playa Ancha, Chile