Results 111 to 120 of about 1,932 (141)

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.
Andreas Segerer, Thomas A. Langworthy, Karl O. Stetter   +2 more
openaire   +1 more source

Histone-like protein in the prokaryote Thermoplasma acidophilum

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1975
The DNA of the prokaryote Thermoplasma acidophilum is associated with a histone-like protein that has the following properties: it has a high content (23%) of basic amino acids, is positively charged at neutral pH, is soluble in acid, and can stabilize DNA against thermal denaturation.
openaire   +2 more sources

Nucleoprotein subunit structure in an unusual prokaryotic organism: Thermoplasma acidophilum

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1980
The freeliving thermophilic mycoplasma, Thermoplasma acidophilum, has a small acid-soluble protein tightly bound to its DNA. This protein is similar to eukaryotic histones in both size and amino acid composition. Here we report that the protein condenses DNA into globular particles that are about half the size of eukaryotic nucleosomes. Our conclusions
Searcy, DG, STEIN, DB
openaire   +3 more sources

Cytoskeleton in the archaebacterium Thermoplasma acidophilum? Viscosity increase in soluble extracts

Biosystems, 1993
Thermoplasma acidophilum has no cell wall, and so its irregular shape implies the presence of a cytoskeleton. When soluble extracts of T. acidophilum were incubated in vitro they increased in viscosity, suggestive of a polymerizable component. Optimal conditions for the viscosity increase coincided with physiological ionic concentrations.
HIXON, WG, Searcy, DG
openaire   +3 more sources

The first transformation method for the thermo-acidophilic archaeon Thermoplasma acidophilum

Journal of Microbiological Methods, 2013
A transformation method yielding up to 10(4) transformants per μg circular DNA was developed for Thermoplasma acidophilum. The method is based on a natural DNA uptake process in which T. acidophilum cells keep their integrity and turn competent at pH 3.5 and 58°C.
Baka, E., Varga, S., Hobel, C., Knispel, R., Fekete, C., Ivanics, M., Kriszt, B., Nagy, I., Kukolya, J.   +8 more
openaire   +4 more sources

Long-chain diglycerol tetraethers from Thermoplasma acidophilum

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1977
The C40 isopranol-containing glycerol ether residues which characterize the complex lipids of the extreme thermoacidophile Thermoplasma acidophilum were isolated and purified from the glycolipid and phospholipid fractions. The glycerol ether, as well as the acetate and methoxy derivatives were characterized by thin-layer, gel-permeation and gas-liquid ...
openaire   +2 more sources

Black lipid membranes of tetraether lipids from Thermoplasma acidophilum

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1992
Black lipid membranes were formed of tetraether lipids from Thermoplasma acidophilum and compared to the bilayer forming lipids diphytanoylphosphatidylcholine and diphythanylglucosylglycerol. Bilayer-forming lipids varied in thickness of black lipid membranes due to the organic solvent used. Measurements of the specific membrane capacitance (Cm = 0.744
J, Stern, H J, Freisleben, S, Janku, K, Ring   +3 more
openaire   +2 more sources

Screening for molecules interacting with proteasomes in Thermoplasma acidophilum.

Biological chemistry, 1997
Thermoplasma acidophilum cell extracts were fractionated by gel filtration. Proteasomes were eluted as two major peaks. The first one (molecular mass(r) about 2 MDa) contained proteasomes associated with DNA/protein complexes. Proteasomes eluted in the other peak were partially resolved into three subpeaks and based on their preferential hydrolysis of ...
C, Ehlers, F, Kopp, B, Dahlmann
openaire   +1 more source

The three-dimensional structure of proteasomes from Thermoplasma acidophilum as determined by electron microscopy using random conical tilting

FEBS Letters, 1991
G Pfeifer, B Dahlmann
exaly  

Expression of functionalThermoplasma acidophilumproteasomes inEscherichia coli

FEBS Letters, 1992
P Zwickl
exaly