DOE JGI releases IMG 1.5 with curated archaeal genomes
Version 1.5 of the Integrated Microbial Genomes (IMG) data management system of the U.S. Department of Energy Joint Genome Institute (DOE JGI) has been released to the public. IMG 1.5 now contains a total of 741 genomes (435 bacterial, 32 archaeal, 15 eukaryotic genomes and 259 bacterial phages) of...
New computational technique allows comparison of whole genomes as easily as whole books
...otic genomes used were as much as 1,000 times longer than the bacterial and archaeal
genomes. Because most of the bacterial and archaeal
genomes code for genes, as opposed to very little of the genomes of higher ...
The structure of the Mre11 protein bound to DNA
...and protein complexes are much more stable at room temperature than human proteins would be. For example, the extremophile Pyrococcus furiosus is an archaeal
microorganism that grows happily at the temperature of boiling water; at room temperature, P. furiosus 's proteins and their complexes are so stable ...
US Department of Energy Joint Genome Institute announces new genome sequencing projects
...rom sulfur reduction in fermentative archaea and help to define the evolutionary and metabolic relationships of the Desulfurococcus species with their archaeal
relatives. The project's principal investigator is Biswarup Mukhopadhyay of the Virginia Polytechnic Institute.
Among the holy grails of biofu...
Researchers probe a DNA repair enzyme
... Fanconi Anemia and Xeroderma pigmentosum.
The researchers studied the archaeal
version of Rad3. Archaea are microbes whose DNA repair systems are closely related to those of human cells.
Rad3) is a very good representative of a unique family of structurally rela...
Census of protein architectures offers new view of history of life
...or which genomic information is available, the team found evidence that the archaeal
microbes, the one-celled organisms that inhabit some of the most forbidding...ld, a huge class of protein fold superfamilies, simply disappeared from the archaeal
Eventually, more and more folds joined the list of a...
From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea
...just now beginning to focus on the large number of archaeal
species that inhabit more mundane environments, in...d a type of lipid, or oily compound, found only in archaeal
cell membranes. This finding indicates that an arc...discuss the effect of temperature and chemistry on archaeal
communities inhabiting marine hydrothermal vents o...
Gut reaction: Researchers define the colon's genome
...quenced human gut organisms: a bacterium, Bifidobacterium longum , and the archaeal
microbe M. smithii . These known organisms showed striking similarity to m...human GI tract hosts multiple strains of B. longum , and a majority of its archaeal
species is related M. smithii. How many unique bacterial genera or species...
Gut microbes' partnership helps body extract energy from food, store it as fat
...," says senior author Jeffrey Gordon, M.D., the Dr. Robert J. Glaser Distinguished University Professor. "As adults, the number of these bacterial and archaeal
microbial cells exceeds the number of our human cells by tenfold. The genes present in this community of 10-100 trillion bugs vastly outnumber our own...
Ammonia-loving archaea win landslide majority
...e of the particular crenarchaeota gene alongside the same type of gene from bacteria," explains Schleper.
The tally suggested that copies of the archaeal
gene in the soil samples were up to 3,000 times more abundant than copies of the bacterial gene. High amounts of lipids specific to crenarchaeota conf...
Molecular sleuths track evolution through the ribosome
Using the three-dimensional structures available for some bacterial and archaeal
ribosomes, the researchers were also able to determine where in the ribosom... The researchers found that 50 percent of the signatures distinguishing the archaeal
and bacterial ribosomes is located in five percent of the ribosomal RNA seq...
Codon Bias-Adjusted BL21 Derivatives for Protein Expression
... were transformed with vectors expressing genes fromhuman, yeast, and archaeal
origins using the T7 RNA polymerase responsive promoter. IPTG-in... to achieve a high level of expression. In Figure
2 , using an archaeal
gene as an example, efficient production of this
...a are helical filaments that rotate like screws. archaeal
flagella are superficially similar, but are diffe..."show","hide")
1 Bacterial flagellum
3 Eukaryotic flagellum
4 See a...plexity . See also: evolution of flagella .
...ones, but histones are found in certain Archaea, namely Euryarchaea. These archaeal
histones may well resemble the evolutionary precursors to the eukaryotic hi...re known:
H1 (sometimes called H5 .)
Two each of class H2A, H2B, H3 and H4 assemble to form one nucl...