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Species InformationThe Picrophilus torridus DSM 9790 genome is 1.55 Million bp long and contains approximately 1583 predicted genes. P. torridus is a thermoacidophile that can grow at temperatures around 60C. A membrane that is very impermiable to protons allows this euryarchaeon to live at pH as low as 0, while maintaining a pH of 4.6 internally.
Taxonomy: Archaea; Euryarchaeota; Thermoplasmata; Thermoplasmatales; Picrophilaceae; Picrophilus.
Sequencing: The sequence was released June 2004 by the University of Goettingen, and was described in Proc Natl Acad Sci U S A 101:9091-6 (2004) Futterer O, Angelov A, Liesegang H, Gottschalk G, Schleper C, et al.."Genome sequence of Picrophilus torridus and its implications for life around pH 0." Abstract: The euryarchaea Picrophilus torridus and Picrophilus oshimae are able to grow around pH 0 at up to 65 degrees C, thus they represent the most thermoacidophilic organisms known. Several features that may contribute to the thermoacidophilic survival strategy of P. torridus were deduced from analysis of its 1.55-megabase genome. P. torridus has the smallest genome among nonparasitic aerobic microorganisms growing on organic substrates and simultaneously the highest coding density among... [Click above reference link for full abstract] Isolation: Nature 375:741-2 (1995) Schleper C, Puhler G, Kuhlmorgen B, Zillig W, "Life at extremely low pH." Abstract: Sequenced related species/strains: Ferroplasma acidarmanus Fer1, Thermoplasma acidophilum DSM 1728, Thermoplasma volcanium GSS1 | Browse Specific Gene/Feature Sets |
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Sample position queriesA genome position can be specified by chromosomal coordinate range, COGID, or keywords from the GenBank or TIGR description of a gene. The available chromosome/plasmid names are:
| Browser Chrom/Plasmid Name | Length (bp) | GC Content (%) | Gene Count | NCBI RefSeq Accession |
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| chr | 1545895 | 35.97 | 1583 | NC_005877 |
The following list shows examples of valid position queries for thisgenome: | Request: | Genome Browser Response: |
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| chr | Displays the entire sequence "chr" in the browser window | | chr:1-10000 | Displays first ten thousand bases of the sequence "chr" | | transporter | Lists all genes with "transporter" in the name or description | | PTO0010 | Display genome at position of gene PTO0010 |
Phylogenetic tree of related species based on multiple-genome alignment in browser:
CreditsThe Archaeal Genome Browsers at UCSC were developed by members of theLowe Lab (Kevin Schneider,Katherine Pollard, Andy Pohl, Todd Lowe) and Robert Baertsch, with significant support fromthe UCSC Human GenomeBrowser group.The Archaeal Browsers are run by a slightly modifiedversion of the UCSC Human GenomeBrowser system. All queries, bug reports, content corrections, suggested improvements,and new track data submissions should be sent to Todd Lowe (lowe@soe.ucsc.edu).If you use the browser in your published research, please cite ourpublication in the Nucleic Acids Research DatabaseIssue. Citations and positive feedback will help us obtain fundingto continue development of this community resource.
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