Photoreceptor cells in our eyes can adjust to both weak and strong light levels, but we still don't know exactly how they do it. Researchers now revealed that the photoreceptor protein rhodopsin forms ...

Rhodopsin, on the other hand, has one subunit, thus making it difficult to distinguish rhodopsin monomers from rhodopsin dimers, in vivo. To determine whether rhodopsin forms monomers or dimers in ...

This image shows the structure of rhodopsin embedded in a membrane. The red structure in the middle is the retinal chromophore responsible for absorbing visible light. (Image credit: Kiser et al., ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 76, No. 9 (Sep., 1979), pp. 4405-4408 (4 pages) Frog retinal rod outer segments, oriented by a magnetic field, ...

Light is a powerful source of energy that is used for various biological purposes. Some organisms harness light to produce ATP, the energy currency of cells, while others use light to interpret their ...

Sahil Gulati, Beata Jastrzebska, Surajit Banerjee, Ángel L. Placeres, Przemyslaw Miszta, Songqi Gao, Karl Gunderson, Gregory P. Tochtrop, Sławomir Filipek, Kota ...

A new, ultrafast raman spectroscopy method has given researchers a glimpse of the early stages of the vision process. Vision is jump-started by the isomerization of the retinal chromophore in ...

A team of biophysicists from Russia, Germany, and France, featuring researchers from the Moscow Institute of Physics and Technology, has discovered and studied the structure of the KR2 rhodopsin under ...

Although rhodopsin's role in activating the phototransduction cascade is well known, the processes that deactivate rhodopsin, and thus the rest of the cascade, are less well understood. At least three ...

Researchers from the Moscow Institute of Physics and Technology, working with Spanish, French, and German colleagues, have determined and analyzed the high-resolution structure of a protein from the ...

The Chesapeake Bay is known for its blue crabs, but those crustaceans are far outnumbered by much tinier residents: bacteria. Every milliliter of bay water is home to thousands to millions of these ...

Photoreceptor cells in our eyes can adjust to both weak and strong light levels, but we still don't know exactly how they do it. Emeritus Professor Fumio Hayashi of Kobe University and his colleagues ...