DIFFERENTIATE FIBROUS AND GLOBULAR PROTEIN
Protein Structure Several level of protein structure 1. Primary structure – sequence of amino acid. 2. Secondary structure – local structure. 3. Tertiary structure – overall 3D shape of protein. 4. Quarternary structure – subunit organization Tertiary structure - 2 examples of tertiary structures are fibrous and globular protein. Fibrous protein vs Globular protein Fibrous Globular Called as scleroproteins. Elongated strand-like structures and are usually in the form of rods or wires. Called as spheroproteins owing to their shape. Spherical in shape and has the property of forming colloids with water. It insoluble in water, weak acids and weak bases but soluble in strong acids and alkalis It soluble in water, acids and bases The peptide chains are bound together by strong intermolecular hydrogen bonds in fibrous proteins. The peptide chains are bound together by weak intermolecular hydrogen bonds in globular proteins. Scleroprotein