( ) 20 Amino Acids Primary Secondary Tertiary Quaternary Denatured Coded in DNA Self assembly to a single (native) structure. Depends on primary structure and solution conditions Common in foods. Many non-native forms depending on protein structure, solution conditions (& history) and ingredient interactions Protein Structure( ) 20 Amino Acids Primary Secondary Tertiary Quaternary Denatured Coded in DNA Self assembly to a single (native) structure. Depends on primary structure and solution conditions Common in foods. Many non-native forms depending on protein structure, solution conditions (& history) and ingredient interactions Protein Structure