Researchers carefully examined the structure of the Mar protein used by Actinomarina Minuta bacteria. This protein is small – only 220 amino acids, facilitating operation. MIPT Scientific Communication Center, using a syncrotron in France, with the help of modern methods, including X -Ray crystallography and analysis, said scientists can see the protein structure.
It turned out that the active part of the protein was opened to the cage or outside, which explained the process of transferring hydrogen ions. These proteins pumps protons from cytoplasm of cells to the environment using the energy of light.
Similar mechanisms probably work in other rhodopins in sea microorganisms.
Source: Ferra
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