Proteins are complex macromolecules made up of successive carboxylic acid—amine residues, amino acids, that are covalently bonded together in a head-to-tail arrangement through substituted amide linkages called peptide bonds. Each protein molecule has a precise length composed of an exact sequence of amino acids which are arranged in a linear, unbranched fashion.
KeywordsPolypeptide Chain Nonpolar Amino Acid Hydropathy Profile Pleated Sheet Amino Acid Unit
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