Results 31 to 40 of about 1,294 (176)
Pulling single bacteriorhodopsin out of a membrane: Comparison of simulation and experiment [PDF]
Mechanical unfolding of single bacteriorhodopsins from a membrane bilayer is studied using molecular dynamics simulations. The initial conformation of the lipid membrane is determined through all-atom simulations and then its coarse-grained ...
Cieplak, Marek +3 more
core +1 more source
This review surveys eukaryotic cilia as putative quantum‐enabled sensory and regulatory centers. It highlights their multifaceted roles in the cell, focuses on the nontrivial roles of quantum mechanics in their membrane and cytoskeletal proteins, and introduces the essential building blocks enabling quantum properties to survive in the warm, wet, and ...
Daniel L. Bilezikian +5 more
wiley +1 more source
Entwicklung und Evaluierung einer auf Bakteriorhodopsin (BR) basierenden photochromen Tampondruckfarbe. Untersuchungen an neuen langzeitstabilen Photoprodukten von BR und Entwicklung eines biologisch-optischen WORM Datenspeichers und einer ...
Fischer, Thorsten (110793439)
core +1 more source
FLUORESCENCE STUDIES ON ANTHRYL BACTERIORHODOPSINS
Fluorescence properties of bacteriorhodopsin analogues containing 3-methyl-5-(9'-anthryl)-2E,4E-pentadienal and 3,7-dimethyl-9-(9'-anthryl)-2E,4E,6E,8E-nonatetraenal chromophores as built-in fluorescence probes are described.
ROY, M +3 more
core +1 more source
Perturbed interaction between residues 85 and 204 in Tyr-185-->Phe and Asp-85-->Glu bacteriorhodopsins [PDF]
According to earlier reports, residue 85 in the bacteriorhodopsin mutants D85E and Y185F deprotonates with two apparent pKa values. Additionally, in Y185F, Asp-85 becomes significantly more protonated during light adaptation. We provide a new explanation
Lanyi, J.K. +2 more
core +1 more source
Chromophore equilibria in bacteriorhodopsin
An investigation of the dark equilibria between different chromophores of bacteriorhodopsin (BR) and studies of the kinetics of their interconversion and photochemical activity have led to the following conclusions. (a) A component of the 605-nm chromophore of BR decays in the millisecond range and is likely to be identical to the intermediate O of the
Fischer, U., Oesterhelt, D.
openaire +2 more sources
Photoisomerization detected in a fully wavelength‐tunable rhodopsin mimic system
The mechanism of retinal photoswitching is illuminated in a designed rhodopsin mimic. Two mechanisms, a conventional cis–trans isomerization and an unprecedented `photodehydration', are observed at atomic resolution in single crystals.We describe the photoisomerization of the retinylidene protonated Schiff base in human retinol‐binding protein II ...
Nona Ehyaei +10 more
wiley +1 more source
On the two forms of bacteriorhodopsin
In our previous work [(1993) FEBS Lett. 313, 248‐250; (1993) Biochem. Int. 30,461‐469] M‐intermediate formation of wild‐type bacteriorhodopsin was shown to involve two components differing in time constants (τ1 = 60–70 μs and τ2 = 220–250 μs), which were suggested to reflect two independent pathways of M‐intermediate formation.
Komrakov, Andrey Yu., Kaulen, Andrey D.
openaire +2 more sources
GRKs and arrestins: Nomenclature and functions in GPCR‐dependent and ‐independent signalling
G protein‐coupled receptor (GPCR) kinases (GRKs) and arrestins play a critical role in the regulation of GPCR signalling. Historic names of mammalian GRKs were replaced by systematic ones in the 1990s; however, both kinds of names are currently in use for mammalian arrestins.
Vsevolod V. Gurevich
wiley +1 more source
Unravelling the folding of bacteriorhodopsin
The folding mechanism of integral membrane proteins has eluded detailed study, largely as a result of the inherent difficulties in folding these proteins in vitro. The seven-transmembrane helical protein bacteriorhodopsin has, however, allowed major advances to be made, not just on the folding of this particular protein, but also on the factors ...
openaire +3 more sources

