What are the four levels or orders of protein structure?
Define the four levels of structure. • Primary structure is the linear sequence of amino acids • Secondary structure is the local spacial arrangement the amino acid sequence • Tertiary structure is the 3-dimensional folding of the secondary structure • Quaternary structure is the supramolecular assembly of proteins. Stabilized by many energetically weak non-covalent bonds. The 3-D structures are stable but flexible. Their conformations can change. Structure of protein determines its function. What are the biological function of proteins? from our previous discussions…….