BIOSC 0100 Lecture Notes - Lecture 7: Hydrogen Bond, Beta Sheet, Protein Folding

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6 Feb 2017

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Polymers: large molecules made up of small repeating units (monomers) bonded together. Amino acids are the monomers that make up proteins. Amino and carboxyl functional groups can be charged depending on the ph. We can assume that the amino group is positively charge and the carboxyl group is negatively charged which makes the net charge neutral or 0. 20 common amino acids found in all organisms. Must know the name, 3 letter abbreviation, one letter abbreviation, and properties. The side chain determines the reactivity and the solubility of the amino acids. Formed when amino acids polymerize through condensation reactions. When amino acids polymerize, a peptide bond forms (c-n bond) between the carboxyl group of one amino and the amino group of another. Polypeptide backbone: everything except the side chain flexible (can fold in a certain way) The order of amino acids dictates how the protein will fold into its ultimate three-dimensional shape.

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