50.0 MB (49.0 MB compressed)
4180 x 4180 pixels
35.3 x 35.3 cm ⏐ 13.9 x 13.9 in (300dpi)
LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Molecular model of ubiquitin-conjugating enzyme complexed with ubiquitin. Ubiquitin is found in all eukaryotic cells. When a protein is damaged or old it will be tagged by several ubiquitin molecules. The protein is then moved to a proteosome, a hollow barrel shaped protein that degrades other proteins into amino acids and small polypeptides. Ubiquitin-conjugating enzymes play a role in the tagging of proteins for degradation.
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