Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"Halobacterium halobium"”.
-
Aerotaxis in HALOBACTERIUM HALOBIUM
… was investigated in the archaebacterium <em>Halobacterium halobium.</em> A quantitative temporal assay for aerotaxis of <em>H. halobium</em> was developed using computer assisted motion analysis. Aerotaxis was most pronounced in early log phase cultures. Peak aerotaxis was found to coincide …
-
Cation effects on the purple membrane of Halobacterium halobium
My more recent research shows that the binding of one divalent cation is directly related to the blue-to-purple transition of bacteriorhodopsin; whereas, four other divalent cation binding sites involving carboxyl groups on the bacteriorhodopsin surface do not directly affect the color change. The …
-
Thermodynamic and kinetic studies of purple membrane from halobacterium halobium
… with the energy tranducing purple membrane from Halobacterium halobium. In the first experiment, we used flash photolysis to measure the effects of solvent viscosity on the kinetics of the purple membrane photocycle, and we analyzed the data in terms of a modified Kramers' theory. In the second …
-
Functional and time-resolved structural studies of bacteriorhodopsin mutants following expression in Halobacterium halobium
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1995.
-
Nuclear Magnetic Resonance Studies of Model and Biological Membranes
… into the membrane protein, bacteriorhodopsin, of Halobacterium halobium. Our results indicate that there are at least two motional classes of amino acids in bacteriorhodopsin. The first type are rigid and give rise to the broad powder pattern observed. These amino acids are "matrix" amino acids …
-
Isolation and characterization of new pterins from nonmethanogenic archaebacteria
… One of these halopterins is produced by Halobacterium salinarium, Halobacterium halobium, and Halococcus morrhuae and is called phosphohalopterin-1. It was given this name because it was the first halopterin discovered and it has four monophosphate esters per dimeric pterin. The proposed …
-
A Deuterium Nuclear Magnetic Resonance Study of Amino Acid Dynamics in the Membrane Protein, Bacteriorhodopsin (Nmr)
… in the photosynthetic purple membrane of Halobacterium halobium. For L{(beta)-('2)H(,3)} alanine, DL{(gamma)-('2)H(,6)} valine, DL{(beta),(gamma)-('2)H(,4)} threonine, L{(delta)-('2)H(,3)} leucine, L{(alpha),(beta),(gamma),(gamma)',(delta)-('2)H(,10)} isoleucine, L{(epsilon)-('2)H(,3)} …
-
Molecular dynamics studies of the protein bacteriorhodopsin
… residues in the purple membrane of the bacterium Halobacterium halobium. Bacteriorhodopsin undergoes a light-driven cyclic process, which pumps protons across the membrane, in order to maintain a proton gradient necessary for ATP synthesis. The cycle is initiated through a trans --+ cis …
-
Molecular Dynamics and Quantum Chemistry Studies of the Protein Bacteriorhodopsin
… residues in the purple membrane of the bacterium Halobacterium halobium. Bacteriorhodopsin undergoes a light-driven cyclic process, which pumps protons across the membrane, in order to maintain a proton gradient necessary for ATP synthesis. The cycle is initiated through a trans → cis …