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| Description: (a) The normal folding pattern for a prion protein. Most of the protein is in a helical configuration (red). (b) The protein has refolded to form a disease-causing prion. This refolding has altered the secondary and tertiary levels of protein structure. In this form, most of the protein is in pleated sheets (the yellow ribbon-like regions). Picture Stats: Views: 165 Filesize: 129.37kB Height: 630 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=44501 |