SEARCH Articles Figures Tables Determining the Primary Structure of a Protein Examples of Polypeptide and Protein Primary Structure Molecular shape of proteins primary, secondary and tertiary structures Primary Structure of Proteins Sequence Analysis by Tandem Mass Spectrometry Primary structure Primary structure of a protein Primary structure of polypeptides and proteins Primary, Secondary, Tertiary, and Quaternary Structure of Proteins Protein primary Protein primary structure Structure of proteins The primary structure of proteins What Is the Primary Structure of a Polypeptide or Protein