Keywords: Ubiquitin cartoon.png Sumarry - Cartoon representation of ubiquitin protein highlighting the secondary structure -helices are coloured in blue and the -sheet in green The normal attachment point for a further ubiquitin molecule in polyubiquitin chain formation lysine 48 is shown in pink Image was created using http //pymol sourceforge net PyMOL en Image Ubiquitin cartoon png Uploaded enwp at 11 59 16 November 2004 en User Rogerdodd Rogerdodd ribbon diagrams Protein degradation Post-translational modifications Ubiquitin |