Biochemistry 2280A Lecture Notes - Lecture 3: Protein Folding, Carboxylic Acid, Amine
22 Sep 2020
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Define each of the elements of protein structure with examples: primary structure of proteins. B-sheet: although most common are the a-helix and b-sheet, many others are possible, these include various turns, loops, helices, and irregular conformations, a single polypeptide chain may have different regions that take on different secondary structures. Individual chains may be identical, somewhat similar, or totally different: the same forces and bonds that create tertiary structure also hold subunits together in a stable complex to form the complete protein. In some proteins, intertwined a-helices hold subunits together; these are called. Biochem section 1, topic 3 notes protein structure & analysis: an example of such a protein is myosin, the motor protein found in muscle that allows contraction. Describe the characteristics of an a-helix and b-sheet: a-helix. Is a helical arrangement of a single polypeptide chain, like a coil spring. In this arrangement, side chains project alternately upward and downward from the sheet.
