Results 111 to 120 of about 2,495 (153)

The Chaperones of the Archaeon Thermoplasma acidophilum

Journal of Structural Biology, 2001
Chaperonesare an essential component of a cell's ability to respond to environmental challenges. Chaperones have been studied primarily in bacteria, but in recent years it has become apparent that some classes of chaperones either are very divergent in bacteria relative to archaea and eukaryotes or are missing entirely.
Ruepp, A., Rockel, B., Gutsche, I., Baumeister, W., Lupas, A.   +4 more
openaire   +4 more sources

Membrane properties of Thermoplasma acidophila

Biochemistry, 1975
Plasma membranes were isolated from Thermoplasma acidophila, a mycoplasma-like organism which grows optimally at pH 2 and 59 degrees. Cells in concentrated suspensions were lysed by titrating to pH 9.3. The membranes were purified by washing at pH 10 and centrifuging in a discontinuous sucrose gradient.
M J, Ruwart, A, Haug
openaire   +2 more sources

Thermoplasma acidophilum and Thermoplasma volcanium sp. nov. from Solfatara Fields

Systematic and Applied Microbiology, 1988
Summary Twenty-three isolates of motile, cell wall-deficient, thermoacidophilic archaebacteria were obtained from hot acidic springs, soils and sediments within solfatara fields in the Azores, Iceland, Indonesia, Italy, and the United States. They are facultatively anaerobic organotrophs. Anaerobically, the isolates gain energy by sulfur respiration.
T A Langworthy, Karl O Stetter
exaly   +2 more sources

Intracellular pH of Thermoplasma acidophila

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1975
Thermoplasma acidophila, a mycoplasma-like organism, was grown at 56 degrees C and pH 2. The intracellular pH of this organism is close to neutral as measured by the distribution of a radioactive weak organic acid, 5,5-dimethyl-2,4-oxazolidinedione, across the plasma membrane. The cell can maintain the pH gradient when subjected to heat or to metabolic
J C, Hsung, A, Haug
openaire   +2 more sources

Dissociation and reconstitution of the Thermoplasma proteasome

European Journal of Biochemistry, 1994
The proteasome from the thermoacidophilic archaeon Thermoplasma acidophilum in its native state represents a 20S particle with significant secondary structure (∼ 35%α helix) of its subunits. Electron microscopy, ultracentrifugal and spectral analysis demonstrate that at pH of less than 3 dissociation to partially denatured subunits occurs.
Grziwa, A., Maack, S., Pühler, G., Wiegand, G., Baumeister, W., Jaenicke, R.   +5 more
openaire   +3 more sources

The crystal structure of glucose dehydrogenase from Thermoplasma acidophilum [PDF]

Structure, 1994
The archaea are a group of organisms distinct from bacteria and eukaryotes. Structures of proteins from archaea are of interest because they function in extreme environments and because structural studies may reveal evolutionary relationships between proteins.
Susan Crennell, Garry L Taylor, G L Taylor   +2 more
exaly   +3 more sources

Proteasome from Thermoplasma acidophilum : a Threonine Protease

Science, 1995
The catalytic mechanism of the 20 S proteasome from the archaebacterium Thermoplasma acidophilum has been analyzed by site-directed mutagenesis of the β subunit and by inhibitor studies. Deletion of the amino-terminal threonine or its mutation to alanine led to inactivation of the enzyme ...
Seemüller, E., Lupas, A. ; https://orcid.org/0000-0002-1959-4836, Stock, D., Löwe, J., Huber, R., Baumeister, W.   +5 more
openaire   +7 more sources

Proteomics Analysis of Thermoplasma Quinone Droplets

PROTEOMICS, 2018
AbstractA novel type of lipid droplet/lipoprotein (LD/LP) particle from Thermoplasma acidophilum has been identified recently, and based on biochemical evidences, it was named Thermoplasma Quinone Droplet (TaQD). The major components of TaQDs are menaquinones, and to some extent polar lipids, and the 153 amino acid long Ta0547 vitellogenin‐N domain ...
Nagy, I., Sun, N., Varga, S., Boicu, M., Zinzula, L., Kukolya, J.   +5 more
openaire   +3 more sources

THE GENUS THERMOPLASMA*

Annals of the New York Academy of Sciences, 1973
Perhaps the organism we have isolated which has elicited the most interest (and some controversy) has been Thermoplasma. The credit for this organism goes first to Gary Darland, who was smart enough to recognize that something others would have considered to be a precipitate was indeed living, and to Robert Belly, who (among other important ...
R. T. Belly, B. B. Bohlool, T. D. Brock
openaire   +1 more source

Glucosylcaldarchaetidylglycerol, a minor phosphoglycolipid from Thermoplasma acidophilum

Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids, 2000
A novel phosphoglycolipid (GPL-K) was isolated from Thermoplasma acidophilum (ATCC 27658). The chemical components of GPL-K were analyzed by gas liquid chromatography and GC-MS. The sugar moiety of GPL-K and its anomeric region were analyzed by NMR assignment.
I, Uda, A, Sugai, A, Shimizu, Y H, Itoh, T, Itoh   +4 more
openaire   +2 more sources