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StatusReference proteome
Proteome IDiUP000006135
Taxonomy990288 - Acidithiobacillus caldus (strain SM-1)
Last modifiedFebruary 27, 2018
Genome assembly and annotationi GCA_000221025.1 from ENA/EMBL
Pan proteomei This proteome is part of the Acidithiobacillus caldus (strain SM-1) pan proteome (fasta)

Acidithiobacillus caldus (strain SM-1) is a moderately thermoacidophilic, obligately chemolithotrophic, Gram-negative bacterium isolated from a pilot bioleaching reactor. It is the dominant sulfur-oxidizing bacterium in biomining and it is also found to be associated with acid mine drainage. The main roles of A. caldus in biomining processes include: 1) to oxidize elemental sulfur and reduced inorganic sulfur compounds (RISCs), thus produces the acidity that is essential for biomining and 2) to remove the accumulated elemental sulfur that would otherwise retard the oxidation of ores. It is shown that RISC oxidation in A. caldus is coupled to ATP generation via electron transport phosphorylation. A.caldus is also one of the dominant sulfur-oxidizing bacteria in bioleaching reactors. It plays the essential role in maintaining the high acidity and oxidation of reduced inorganic sulfur compounds during bioleaching process. A. caldus encodes all enzymes for the central metabolism and the assimilation of carbon compounds, among which 29 proteins/enzymes are identifiable with proteomic tools. A.caldus fixes CO2 via the classical Calvine-Basshame-Benson (CBB) cycle, and can operate complete Embden-Meyerhof pathway (EMP), pentose phosphate pathway (PPP), and gluconeogenesis. It has an incomplete tricarboxylic acid cycle (TCA). It has an optimal growth temperature around 40-45 degrees Celsius and pH of 2-2.5. (Adapted from PMID: 21703548).


DownloadView all proteins
Component nameGenome Accession(s)
Plasmid megaplasmid241
Plasmid pLAtc110
Plasmid pLAtc213
Plasmid pLAtc328


  1. "Unraveling the Acidithiobacillus caldus complete genome and its central metabolisms for carbon assimilation."
    You X.Y., Guo X., Zheng H.J., Zhang M.J., Liu L.J., Zhu Y.Q., Zhu B., Wang S.Y., Zhao G.P., Poetsch A., Jiang C.Y., Liu S.J.
    J. Genet. Genomics 2011:243-252(2011) [PubMed] [Europe PMC] [Abstract]

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