BCH210H1 Lecture Notes - Lecture 4: Tripeptide, Dipeptide, Tetrapeptide
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BCH210H1 Full Course Notes
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Protein structure fibrous proteins have simple linear structures insoluble in water globular proteins spherical shape very soluble in water. Membrane proteins insoluble in aqueous solutions but can be solubilized in detergents. Protein structure has four levels of organization. Peptide short polymers of amino acids. Dipeptide, tripeptide, tetrapeptide two, three and four amino acid residues long, amino acid residue a single unit in a peptide respectively. Oligopeptide more than 12 and less than 20 amino acid residues. Polypeptide long chain of amino acids. Protein composed of one or more polypeptide chains. Multimeric protein more than one polypeptide chain. Homomultimeric protein multimeric protein that contains only one kind of polypeptide.