Mol_Structure_Lhandout

Mol_Structure_Lhandout - Macromolecular Structure BIOL 7110...

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1 Macromolecular Structure BIOL 7110 / CHEM 8901 / BIOL 4105 / 4804 January 18, 2011 Amino acids
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2 Alanine ala A Methionine met M Arginine arg R Phenylalanine phe F Asparagine asn N Proline pro P Aspartic acid asp D Serine ser S Cysteine cys C Threonine thr T Glutamine gln Q Tryptophan trp W Glutamic acid glu E Tyrosine tyr Y Glycine gly G Valine val V Histidine his H Isoleucine ile I Leucine leu L Lysine lys K Abbreviations for the amino acids Aspartic acid or asparagine asx B Glutamic acid or glutamine glx Z Torsional rotations about phi ( φ ) and psi ( ψ ) φ 1 ψ 1 2 2 ω 1 is rotation about N-C α bond is rotation about C α -CO bond
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3 The Ramachandran plot and preferred conformations of amino acids α helix β strand The alpha helix and pleated beta sheet A good website for reviewing amino acids and protein structure: http://trc.ucdavis.edu/biosci10v/bis10v/week2/07proteins.html
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4 Beta sheet structures Antiparallel β sheet Parallel β sheet Helical wheel and the amphipathic alpha helix Hydrophobic residues in yellow-orange
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Mol_Structure_Lhandout - Macromolecular Structure BIOL 7110...

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