Results 41 to 50 of about 60,662 (175)

Molecular logic behind the three-way stochastic choices that expand butterfly colour vision. [PDF]

, 2016
Butterflies rely extensively on colour vision to adapt to the natural world. Most species express a broad range of colour-sensitive Rhodopsin proteins in three types of ommatidia (unit eyes), which are distributed stochastically across the retina.
Arikawa, Kentaro, Desplan, Claude, Huo, Lucy, Kinoshita, Michiyo, Perry, Michael, Saldi, Giuseppe   +5 more
core   +1 more source

Optogenetic manipulation of neuronal and cardiomyocyte functions in zebrafish using microbial rhodopsins and adenylyl cyclases

eLife, 2023
Even though microbial photosensitive proteins have been used for optogenetics, their use should be optimized to precisely control cell and tissue functions in vivo.
Hanako Hagio, Wataru Koyama, Shiori Hosaka, Aysenur Deniz Song, Janchiv Narantsatsral, Koji Matsuda, Takashi Shimizu, Shoko Hososhima, Satoshi P Tsunoda, Hideki Kandori, Masahiko Hibi   +10 more
doaj   +1 more source

Age-related deterioration of rod vision in mice [PDF]

, 2010
Even in healthy individuals, aging leads to deterioration in visual acuity, contrast sensitivity, visual field, and dark adaptation. Little is known about the neural mechanisms that drive the age-related changes of the retina and, more specifically ...
Crouch, Rosalie K, Fan, Jie, Kefalov, Vladimir J, Kolesnikov, Alexander V   +3 more
core   +2 more sources

Flotillin-associated rhodopsin (FArhodopsin), a widespread paralog of proteorhodopsin in aquatic bacteria with streamlined genomes

mSystems, 2023
Microbial rhodopsins are found more than once in a single genome (paralogs) often have different functions. We screened a large dataset of open ocean single-amplified genomes (SAGs) for co-occurrences of multiple rhodopsin genes.
Jose M. Haro-Moreno, Mario López-Pérez, Alexey Alekseev, Elizaveta Podoliak, Kirill Kovalev, Valentin Gordeliy, Ramunas Stepanauskas, Francisco Rodriguez-Valera   +7 more
doaj   +1 more source

Abnormal photoreceptor outer segment development and early retinal degeneration in kif3a mutant zebrafish [PDF]

, 2016
Photoreceptors are highly specialized sensory neurons that possess a modified primary cilium called the outer segment. Photoreceptor outer segment formation and maintenance require highly active protein transport via a process known as intraflagellar ...
Akhtar, Alfinito, Avasthi, Bachmann-Gagescu, Baker, Beech, Brockerhoff, Cao, Deacon, Eblimit, Goetz, Huang, Insinna, Insinna, Insinna, Jiang, Jimeno, Jimeno, Kodani, Krock, Lopes, Louie, Makhankov, Marszalek, Marszalek, Muresan, Muresan, Nascimento, Nonaka, Pazour, Ryan, Scholey, Shu, Stearns, Sukumaran, Traverso, Trivedi, Tsujikawa, Tuma, Westerfield, Whitehead, Wolfrum, Yamazaki, Yang, Zhao   +44 more
core   +2 more sources

Incorporation of membrane proteins into large single bilayer vesicles. Application to rhodopsin. [PDF]

, 1979
A general procedure to incorporate membrane proteins in a native state into large single bilayer vesicles is described. The results obtained with rhodopsin from vertebrate and invertebrate retinas are presented.
Darszon, A, Ellisman, MH, Montal, M, Vandenberg, CA   +3 more
core  

Light‐Driven Quadrupedal Walking Biohybrid Robot With Antagonistic Muscle‐Rings and Inclined Joints

Advanced Robotics Research, EarlyView.
This work presents a light‐driven quadrupedal walking biohybrid robot powered by antagonistic muscle‐rings that achieve alternating walking gait. Optical training improved reproducibility of cultured muscle tissues, while caffeine treatment enhanced contractile force.
Shotaro Saito, Byeongwook Jo, Tomohiro Morita, Shota Noda, Minghao Nie, Shoji Takeuchi   +5 more
wiley   +1 more source

Membrane Protein Activity Induces Specific Molecular Changes in Nanodiscs Monitored by FTIR Difference Spectroscopy

Frontiers in Molecular Biosciences, 2022
It is well known that lipids neighboring integral membrane proteins directly influence their function. The opposite effect is true as well, as membrane proteins undergo structural changes after activation and thus perturb the lipidic environment.
Federico Baserga, Antreas Vorkas, Fucsia Crea, Luiz Schubert, Jheng-Liang Chen, Aoife Redlich, Mariafrancesca La Greca, Julian Storm, Sabine Oldemeyer, Kirsten Hoffmann, Ramona Schlesinger, Joachim Heberle   +11 more
doaj   +1 more source

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Advanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat, Laurie O'Neill, Léo Pio‐Lopez, Megan M. Sperry, Patrick Erickson, Tiffany Lin, Michael Levin   +6 more
wiley   +1 more source

New spectral templates for rhodopsin and porphyropsin visual pigments [PDF]

Archives of Biological Sciences, 2019
A four-parameter model of spectral sensitivity curves was developed. Empirical equations were designed for A1- and A2-based visual pigments with the main α-band maximum absorptions (λmax) from 350 nm, near the ultraviolet, up to 635 nm in the far-red ...
Gačić Zoran, Mićković Branislav, Gačić Luka, Damjanović Ilija   +3 more
doaj   +1 more source