BIO311C 1nd Edition Lecture 10 Outline of Last Lecture Proteins Outline of Current Lecture Structure of Amino acids and Proteins Current LectureAmino acid group: Amino group bonded to carbonCarboxyl group bonded to carbonC-H bond R-group bonded to carbon4 main structures of proteins: Primary structure Unique amino acids because of unique DNA sequences all joined together by peptide bonds Peptide bond:Formed by the dehydration reaction between a carboxyl group of one amino acid to the amino group of the next. Secondary structure:Consists of H-bonds between the amino acidsResults in alpha and beta molecules through folding and coilingThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Tertiary structure:Some R-groups have sulphurs which results in the formation of disulphide bridges Ionic bonds between charged R-groups of two amino acids 3 dimensional foldingOne amino acid can change the entire sequence of the protein Proteins can be denatured by:Change in temperature Change in PH Change in concentration of polar and non-polar
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