Results 71 to 80 of about 5,006 (168)

Lipid composition of integral purple membrane by 1H and 31P NMR

open access: yesJournal of Lipid Research, 2005
In the purple membrane (PM) of halobacteria, lipids stabilize the trimeric arrangement of bacteriorhodopsin (BR) molecules and mediate the packing of the trimers in a regular crystalline arrangement.
Christian Renner   +2 more
doaj   +1 more source

The bacteriorhodopsin gene. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1981
The bacteriorhodopsin gene has been identified in a 5.3-kilobase restriction endonuclease fragment isolated from Halobacterium halobium DNA, using a cloned cDNA fragment as the probe. Of the 1229 nucleotides whose sequence was determined in the genomic fragment, 786 correspond to the structural gene of bacteriorhodopsin, 360 are upstream from the ...
R, Dunn   +6 more
openaire   +2 more sources

Structural studies of bacteriorhodopsin in BC era

open access: yesBiophysics and Physicobiology, 2023
It marked half a century since the discovery of bacteriorhodopsin two years ago. On this occasion, I have revisited historically important diffraction studies of this membrane protein, based on my recollections. X-ray diffraction and electron diffraction,
Mikio Kataoka
doaj   +1 more source

Large scale preparation of homogeneous bacteriorhodopsin [PDF]

open access: yes, 1990
Homogeneous bacteriorhodopsin was obtained preparatively (100 mg batches) from purple membrane of Halobacterium halobium cells. The homogeneity of the protein was considerably affected by variations in the growth conditions of the bacteria.
Bernard Lorber   +3 more
core   +1 more source

Ionic Polymer Microactuator Activated by Photoresponsive Organic Proton Pumps

open access: yesActuators, 2015
An ionic polymer microactuator driven by an organic photoelectric proton pump transducer is described in this paper. The light responsive transducer is fabricated by using molecular self-assembly to immobilize oriented bacteriorhodopsin purple membrane ...
Khaled M. Al-Aribe   +2 more
doaj   +1 more source

Absorption characteristics of bacteriorhodopsin molecules

open access: yes, 2000
The bacteriorhodopsin molecule absorbs light and undergoes a series of structural transformation following a well-defined photocycle. The complex photocycle is transformed to an equivalent level diagram by considering the lifetime of the intermediate ...
Gowda, K.A., Kumar, H.K.T.
core   +1 more source

Meniscus‐Mediated Imaging of Soft Biological Membranes Using 200 kN/m Ultra‐Stiff 15 MHz MEMS AFM Probes

open access: yesJournal of Molecular Recognition, Volume 39, Issue 3, May 2026.
ABSTRACT Coronaviruses, among other membrane‐enveloped viruses, can remain infectious on surfaces in ambient air for days. Many bacteria and fungi also expose their plasma membranes to air environments. Key survival strategies in air include hydrophobic coatings to prevent water loss and waxy or silica‐based resistant cell walls.
Suyambulingam Subramanian   +3 more
wiley   +1 more source

Reversible Photochromic Reactions of Bacteriorhodopsin from Halobacterium salinarum at Femto- and Picosecond Times

open access: yesMolecules
The operation of bacteriorhodopsin (BR) from the archaeon Halobacterium salinarum is based on the photochromic reaction of isomerization of the chromophore group (the retinal protonated Schiff base, RPSB) from the all-trans to the 13-cis form.
Olga Smitienko   +7 more
doaj   +1 more source

Electrons and X‐rays for diffraction and imaging

open access: yesActa Crystallographica Section D, Volume 82, Issue 5, Page 446-456, May 2026.
The use of X‐rays and electrons for diffraction and imaging of soft biological samples is compared.A comparison is provided between the use of electrons and X‐rays for collecting diffraction data from small protein crystals and imaging data from cells and tissues.
Colin Nave   +2 more
wiley   +1 more source

Photochromic sensitivity of modified bacteriorhodopsin films for molecular electronics devices

open access: yesТехнологія та конструювання в електронній апаратурі, 2005
In the search for materials for molecular electronics, the possibility of modifying bacteriorhodopsin (BR) films with bifunctional cross-linking reagents has been investigated.
G. E. Adamov   +2 more
doaj  

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