BPS 2110 Lecture Notes - Lecture 8: Home Shopping Network, Aspartic Acid, Asparagine

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D rt e c k y h s t. 4 acidic b c 0 closer to ewg. 2 count 1 4 clockwise r q counterclockwise s g. Sequence of amino acids joined by peptide (amide) bonds. Regions of local order in backbone chain, made of side chain interactions + restrictions. Amide bonds have double-bond character (partial double bond and partial charge cause restricted rotation) s pf c. C n shorter than g c ble bondlengthdepends onstrength triple sp double spa single sps. Backbone c-c bonds prefer to be perpendicular to r. Side chain interactions within a region of the chain. Result of chemical interactions is the folding of the amino acid chain to produce large-scale structures. Areas where the chain changes direction by a large amount. Antiparallel: more common and stable because linear/parallel h-bonds. Non-bonding interactions between 2 structures cause them to fold back on themselves. Ionic bonds forming salt bridges between charged ions.

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