BC 351 Lecture Notes - Carboxylic Acid, Amine, Stereochemistry

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5 Aug 2014
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A residue is an amino acid in the context of a protein. The r group (aka side chain) is the group that differentiates the 20 amino acids. A chiral center is an atom with 4 different groups bound to it. 2 different ways to arrange groups around a chiral center. Stereoisomers are chemical compounds that have the same chemical make-up and connectivity but different spatial arrangements. Glycine is the only amino acid that does not exhibit stereochemistry. Only l amino acids are used in proteins. For the most part, nonpolar environments protein interior. Cysteine is only amino acid that can form covalent bonds with other. Ionization reaction starts with something not an ion, ion is created. Represents the affinity of a conjugate base for a proton. Le chatelier"s principle (aka mass action) states that when a stress is applied to a system at equilibrium the equilibrium will adjust to minimize the effects of the stress.

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