Archaea Genomes - SULFOLOBUS TOKODAII
Sulfolobus tokodaii
is able to convert hydrogen sulfide to sulfate and may have industrial applications, such as wastewater treatment
Sulfolobales are hyperthermophilic archaea from terrestrial volcanic sites that
grow in sulfur-rich hot acid springs. The
Sulfolobus tokodaii strain 7 was isolated from Beppu hot springs in Kyusyu, Japan.
It optimally grows at 80C, at low pH, and under aerobic conditions.
It was
chosen for sequencing because the researchers intended to compare
its genomes with the genome of a closely related species,
A.
pernix K1 and
Pyrococcus horikoshii.
The entire genomic
sequence of
S. tokodaii strain 7 is the third sequence
from aerobic thermophilic crenarchaeota. The comparison of this
genome with other archaea or thermophilic microorganisms may provide
important information about the difference between euryarchaeota
and crenarchaeota, as well as differences of the thermostability
of proteins and the origin or evolution of eukaryotes. More detailed
analysis of gene organization and gene structure in comparison with
other archaeal genomes is under investigation. Sequence comparison
also identified remnants of a plasmid from an ancestral species,
which is integrated in the
S. tokodaii genome.
The genomic data of this strain provides the information on the
thermostability of proteins and characteristics of cells living
in an acidic environment.
References:
http://jura.ebi.ac.uk:8765/ext-genequiz//genomes/sut0109/index.html
http://genomenewsnetwork.org/articles/11_01/Sulfolobus_tokodaii.shtml
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