a description of proteins composed of polypeptide chains and non protein groups Blocks of proteins what a polypeptide chain is a protein is made from one or more polypeptide chains proteins form because non-polar r groups hide in.
{"Image DocumentName": "FOUR LEVELS OF PROTEIN STRUCTURE", "Image ImageDescription": "- Primary (1\u00b0) o Linear sequence of amino acids in a protein. - Secondary (2\u00b0) o Local 3-dimensional structure of the PEPTIDE BACKBONE. - Tertiary (3\u00b0) o Global arrangement of secondary structure, side chains (R groups), and other prosthetic groups (e.g. metals) - Quaternary (4\u00b0) o Arrangement of multiple proteins into complexes.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}