Simon Beard
University of Chile
8 Papers
127 Citations
Simon Beard is an academic researcher from University of Chile. The author has contributed to research in topics: Biomining & Genome. The author has an hindex of 6, co-authored 7 publications.
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Papers
Genomics, metagenomics and proteomics in biomining microorganisms
Lissette Valenzuela,An Chi,Simon Beard,Alvaro Orell,Nicolas Guiliani,Jeff Shabanowitz,Donald F. Hunt,Carlos A. Jerez +7 more
TL;DR: These powerful approaches are reviewed here since they offer the possibility of exciting new findings that will allow analyzing the community as a microbial system, determining the extent to which each of the individual participants contributes to the process, how they evolve in time to keep the conglomerate healthy and therefore efficient during the entire process of bioleaching.
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Periplasmic Proteins of the Extremophile Acidithiobacillus ferrooxidans A High Throughput Proteomics Analysis
An Chi,Lissette Valenzuela,Simon Beard,Aaron J. Mackey,Jeffrey Shabanowitz,Donald F. Hunt,Carlos A. Jerez +6 more
TL;DR: In this paper, a high-resolution linear ion trap-FT MS was used to identify a total of 131 proteins in the periplasm of acidiobacillus ferrooxidans grown in thiosulfate.
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Identification of putative sulfurtransferase genes in the extremophilic Acidithiobacillus ferrooxidans ATCC 23270 genome: structural and functional characterization of the proteins.
TL;DR: Eight nucleotide sequences containing a single rhodanese domain were found in the Acidithiobacillus ferrooxidans ATCC 23270 genome and Amino acids sequence comparisons allowed us to identify the potentially catalytic Cys residues and other highly conserved r Rhodanese family features in all eight proteins.
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Growth of Acidithiobacillus Ferrooxidans ATCC 23270 in Thiosulfate Under Oxygen-Limiting Conditions Generates Extracellular Sulfur Globules by Means of a Secreted Tetrathionate Hydrolase
TL;DR: The extracellular TTH activity described here gives experimental support to the TTH-driven model for hydrophilic sulfur globule generation, and strongly suggests that the generation of sulfur globules in A. ferrooxidans corresponds to an early step during its adaptation to an anaerobic lifestyle.
Differential-Expression Proteomics for the Study of Sulfur Metabolism in the Chemolithoautotrophic Acidithiobacillus ferrooxidans
Lissette Valenzuela,An Chi,Simon Beard,Jeffrey Shabanowitz,Donald F. Hunt,Carlos A. Jerez +5 more
- 01 Jan 2008
TL;DR: Many of the periplasmic proteins changing their expression during growth in sulfur compounds may have important roles yet to be described in the sulfur metabolism of this acidophilic microorganism, and this knowledge will eventually help to improve mineral bioleaching processes.
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