LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Zinc finger-RNA complex. Computer models of zinc finger protein molecules complexed with RNA (ribonucleic acid) molecules. The primary structure of the RNA (pink rods) and the secondary structure of the zinc fingers (alpha-helices, blue and beta-sheets, purple) are shown. Zinc finger domains are found in a number of proteins that act to regulate the activity of RNA. They act as genetic switches, inhibiting or promoting the translation of the RNA into protein. Two modes of bonding to the RNA molecule are shown; either interacting with the backbone of the RNA molecule (left), or recognising specific bases within the molecule (right).
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