Bio124S_07Present7

Bio124S_07Present7 - Polymerization of Amino Acids ->...

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Polymerization of Amino Acids -> Proteins Condensation reactions between the amino group of one amino acid and the carboxyl group of another forms a peptide linkage . Repeated polymerization forms peptides and proteins.
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Protein Structure The four levels of protein structure are primary, secondary, tertiary, and quaternary. The sequence of amino acids making up the peptide is called its primary structure . The peptide backbone consists of repeating units of atoms: N—C—C—N—C—C. Enormous numbers of different proteins exist.
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Protein Primary Structure
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Protein Structure A protein’s secondary structure consists of regular, repeated patterns in different regions in the polypeptide chain. This shape is maintained primarily by hydrogen bonds within the amino acid sequence (the primary structure). Two common secondary structures are the α helix and the β pleated sheet .
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Protein Secondary Structure
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Protein Secondary Structure The α helix is a right-handed coil. The helical shape of the peptide backbone is
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This note was uploaded on 04/08/2008 for the course BIO 124 taught by Professor Idk during the Fall '05 term at Bradley.

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Bio124S_07Present7 - Polymerization of Amino Acids ->...

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