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July 28, 2016

. The rare furnace that was used to burn jars in the ancient factory. Photo: Roi Liran, Antiquities Authority

An impressive 1600-year-old factory for the production of jugs has been uncovered in the Western Galilee

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URSs, as mentioned, inhibit protein translation and may be fatal to the cell and the entire organism. The right part of the diagram shows their "damage mechanism", and the left part of the diagram shows a normal and normal process in the absence of URSs. Above: The genetic information, which encodes the sequence of amino acids, reaches the ribosome with the help of a molecule called mRNA. Amino acids (colored circles) join into a sequence and the new protein is pushed out of the exit channel of the ribosome. On the left side we see a normal sequence that creates normal proteins, while on the right side the row of amino acids contains the strong URS CMYW (in E. coli bacteria), which inhibits the protein on its way out and thus prevents the translation of additional proteins. In the middle: on the left side the proteins are organized in normal clusters, while on the right side - under the influence of the URS - less normal proteins are translated and damaged proteins are formed that were not translated to the end. Below: E. coli cells grow on plates in the presence (+) or absence (-) of IPTG - a substance that causes protein translation. On the left, i.e. on the normal side where the translated protein (+) does not contain URS, the number of bacterial colonies is the same as the number of bacterial colonies that grew without a translation command (-). On the right, on the disrupted side where the translated protein contains a URS (+), the number of colonies is much smaller than the number of colonies grown without the translation command (-).

Molecular evolution eliminates lethal sequences

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A metamaterial developed by researchers from Tel Aviv University and the Netherlands. Screenshot from the researchers' video

A metamaterial that can be produced to fit any pattern

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The AS-beta protein (green), which is expressed on the surface of the mitochondria, the organelles responsible for the production of energy in the cell, enables the separation between the sperm cells in the mature ferment fly. Cell nuclei are marked in blue

Destruction builds life

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