Results 151 to 160 of about 12,018 (199)
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Comparison of purple membrane from Halobacterium cutirubrum and Halobacterium halobium
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1976Direct comparison of purple membrane preparations from Halobacterium cutirubrum and Halobacterium halobium was carried out. Both preparations were found to be essentially identical with respect to their molecular weight, retinal content, lipid composition, fingerprinting of peptides from peptide digestion, electron micrographs and X-ray diffraction ...
S C, Kushwaha, M, Kates, W, Stoeckenius
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The glycolipid of Halobacterium trapanicum
Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1993The structural elucidation of the polar lipids in Halobacterium trapanicum is reported with particular emphasis on a new sulfated disaccharide derivative of 2,3-di-O-phytanyl-sn-glycerol. The full structural designation of this glycolipid is 2,3-di-O-phytanyl-1-O- (mannopyranosyl-(2-sulfate)-alpha-D-1-2-glucopyranosyl-alpha-D)-sn-glyce rol.
A Trincone +6 more
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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
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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
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The glycolipid ofHalobacterium saccharovorum
FEMS Microbiology Letters, 1988Abstract The polar lipids of the halophilic archaebacterium Halobacterium saccharovorum have been analyzed by spectroscopic methods, including 13 C NMR to establish structural detail. C 20 , C 20 diether forms of phosphatidyl glycerol (PG), phosphatidyl glycerol phosphate (PGP) and phosphatidyl glycerol sulphate (PGS) are the major polar lipids ...
LANZOTTI, VIRGINIA +3 more
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Halobacterium volcanii spec. nov., a Dead Sea halobacterium with a moderate salt requirement
Archives of Microbiology, 1975A halophilic bacterium was isolated from bottom sediment from the Dead Sea. The organism possessed the properties of the halobacteria, but differed from the known species in two important respects, 1) the cells were disc shaped and often cupped when grown under optimum conditions, 2) the optimum requirements for sodium chloride was in the range 1.7--2 ...
M F, Mullakhanbhai, H, Larsen
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Adenosine Aminohydrolase from Halobacterium cutirubrum
Canadian Journal of Biochemistry, 1973The extreme halophilic bacterium Halobacterium cutirubrum was examined for base, nucleoside, and nucleotide aminohydrolase activity on pyrimidine bases and their nucleosides and nucleotides. Only adenosine aminohydrolase activity was demonstrated.
R J, Bauer, D M, Carlberg
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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
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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
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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
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