Thermoproteous tenax: Difference between revisions

From MicrobeWiki, the student-edited microbiology resource
Line 37: Line 37:
==Genome Structure==
==Genome Structure==


Describe the size and content of the genome. How many chromosomes?  Circular or linear?  Other interesting features?  What is known about its sequence?
The genome of <i> Thermoproteus tenax </i> is 1,841,542 base pairs long and contains 91 unique open reading frames (Siebers et al., 2011). The single circular chromosome contains 2,051 protein-encoding open reading frames with an average length of 813 base pairs and a predicted 1,552 assigned functions (Siebers et al., 2011). It has an average GC content of 55.13%, which is higher than average for the archaea domain (Siebers et al., 2011; Li and Du, 2014). For each of the genes encoding for ribosomal RNA (23S, 16S, and 5S), only one copy is present in the genome (Siebers et al., 2011).
 


==Cell Structure, Metabolism and Life Cycle==
==Cell Structure, Metabolism and Life Cycle==

Revision as of 03:19, 16 November 2023

This student page has not been curated.
Image of thinly sliced Thermoproteus tenax cells in the process of dividing. Image credit: Wildhaber and Baumeister 1987.


Classification

Domain; Phylum; Class; Order; family [Others may be used. Use NCBI link to find]


Species

NCBI: [1]


Thermoproteus tenax


Description and Significance

Thermoproteus tenax is a hyperthermophilic archaeal organism first discovered in volcanic fields in Iceland (Zillig et al., 1981). It is a strict anaerobe that is notable for its ability to grow both chemolithoautotrophically and chemoorganoheterotrophically (Siebers et al., 2011). It is dependent on sulfur for growth, which functions as its final electron receptor (Siebers et al., 2011).

Thermoproteus tenax is rod shaped with variable length and encompassed by a protein S-layer with a hexagonal lattice structure (Wildhaber and Baumeister, 1987). It is unique in that it is the first member of the Thermoproteus genus to have a fully sequenced genome (Siebers et al., 2011).

Genome Structure

The genome of Thermoproteus tenax is 1,841,542 base pairs long and contains 91 unique open reading frames (Siebers et al., 2011). The single circular chromosome contains 2,051 protein-encoding open reading frames with an average length of 813 base pairs and a predicted 1,552 assigned functions (Siebers et al., 2011). It has an average GC content of 55.13%, which is higher than average for the archaea domain (Siebers et al., 2011; Li and Du, 2014). For each of the genes encoding for ribosomal RNA (23S, 16S, and 5S), only one copy is present in the genome (Siebers et al., 2011).

Cell Structure, Metabolism and Life Cycle

Interesting features of cell structure; how it gains energy; what important molecules it produces.


Ecology and Pathogenesis

Habitat; symbiosis; biogeochemical significance; contributions to environment.

If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.


References

[Sample reference] Takai, K., Sugai, A., Itoh, T., and Horikoshi, K. "Palaeococcus ferrophilus gen. nov., sp. nov., a barophilic, hyperthermophilic archaeon from a deep-sea hydrothermal vent chimney". International Journal of Systematic and Evolutionary Microbiology. 2000. Volume 50. p. 489-500.


Author

Page authored by Audrey Groves, student of Prof. Bradley Tolar at UNC Wilmington.