Results 151 to 160 of about 8,069 (190)
Some of the next articles are maybe not open access.
Photoreactivation in Halobacterium cutirubrum
Canadian Journal of Microbiology, 1972Extremely halophilic bacteria are able to survive in a natural environment exposed to high doses of ultraviolet irradiation. One such organism, Halobacterium cutirubrum, has been characterized to possess an extremely efficient photoreactivation from ultraviolet damage. A population irradiated to 1% survivors can photoreactivate to complete recovery of
M A, Hescox, D M, Carlberg
openaire +2 more sources
Ultrastructure of two species of halobacterium
Journal of Ultrastructure Research, 1972The morphology of a halobacterium from the Dead Sea has been compared with Halobacterium halobium. A freeze-fracture study has revealed two hexagonal patterns with repeating distances of 155 A and 65 A within layers of the cell-envelope. The larger pattern is a characteristic of the genus Halobacterium. The smaller has been identified with a surface of
R G, Kirk, M, Ginzburg
openaire +2 more sources
Canadian Journal of Microbiology, 1989
The gene encoding the Mn-containing superoxide dismutase (SOD) from Halobacterium cutirubrum has been cloned and sequenced. The deduced amino acid sequence is homologous to the sequences of Fe and Mn SODs from eubacteria. The high degree of amino acid identity between the archaebacterial and eubacterial proteins suggests that a SOD gene may have been ...
B P, May, P, Tam, P P, Dennis
openaire +2 more sources
The gene encoding the Mn-containing superoxide dismutase (SOD) from Halobacterium cutirubrum has been cloned and sequenced. The deduced amino acid sequence is homologous to the sequences of Fe and Mn SODs from eubacteria. The high degree of amino acid identity between the archaebacterial and eubacterial proteins suggests that a SOD gene may have been ...
B P, May, P, Tam, P P, Dennis
openaire +2 more sources
Time-domain reflectometry studies onHalobacterium halobiumandHalobacterium marismortui
Physics in Medicine and Biology, 1996The dielectric properties of Halobacterium halobium and Halobacterium marismortui measured over the frequency range 1 MHz to 1 GHz are compared with a single-shell model for interfacial polarization. In the case of Halobacterium halobium, the model shows excellent agreement with the experimental data for reasonable values of membrane and cytoplasmic ...
S, Bone +4 more
openaire +2 more sources
The membrane proteome of Halobacterium salinarum
PROTEOMICS, 2005AbstractThe identification of 114 integral membrane proteins from Halobacterium salinarum was achieved using liquid chromatography/tandem mass spectrometric (LC/MS/MS) techniques, representing 20% of the predicted alpha‐helical transmembrane proteins of the genome.
Klein, C. +7 more
openaire +3 more sources
Unusual physical organization of the Halobacterium genome
Nature, 1982The genomes of the extremely halophilic bacteria, Halobacterium halobium and Halobacterium volcanii, contain many repeated sequences. These sequences comprise many families, seem to be highly mobile and are arranged in both clustered and dispersed fashions within these genomes.
C, Sapienza, W F, Doolittle
openaire +2 more sources
Light energy conversion in halobacterium halobium
Journal of Supramolecular Structure, 1974AbstractHalobacterium halobium carries out photophosphorylation. A rhodopsin‐like protein, bacteriorhodopsin, located in the cell membrane mediates the first step in energy transduction, the conversion of light energy into a chemiosmotic gradient. After absorption of a photon, bacteriorhodopsin undergoes a series of fast reactions, returning to its ...
W, Stoeckenius, R H, Lozier
openaire +2 more sources
Biogenesis of the purple membrane of Halobacterium halobium
Biophysics of Structure and Mechanism, 1977A protein closely resembling the purple membrane protein pre-exists in the cell membrane of H. halobium prior to the appearance of functional bacteriorhodopsin. It is associated with a differentiated membranous structure which has been isolated on a sucrose gradient and appears to be a precursor of the purple membrane.
A, Danon, M, Brith-Lindner, S R, Caplan
openaire +2 more sources
Photoacoustic calorimetry of Halobacterium halobium photocycle
Biochemical and Biophysical Research Communications, 1980Summary Enthalpy changes that occur during the photocycle of Halobacterium halobium purple membrane fragments have been measured on a millisecond time scale, using photoacoustic detection to obtain modulation photocalorimetric data. Details are given on the ways to obtain quantitative thermodynamic and kinetic information by this method.
H, Garty, D, Cahen, S R, Caplan
openaire +2 more sources
Dicyclohexylcarbodiimide-sensitive ATPase in Halobacterium saccharovorum
Archives of Biochemistry and Biophysics, 1985Membranes from Halobacterium saccharovorum contained a cryptic ATPase which required Mg2+ or Mn2+ and was activated by Triton X-100. The optimal pH for ATP hydrolysis was 9-10. ATP or GTP were hydrolyzed at the same rate while ITP, CTP, and UTP were hydrolyzed at about half that rate. The products of ATP hydrolysis were ADP and phosphate.
H, Kristjansson, L I, Hochstein
openaire +2 more sources