Use the information gathered in the Protein Architecture Molecular Structure Tut

Question

Use the information gathered in the Protein Architecture Molecular Structure Tutorial to answer the following questions. Sort the descriptions of helices, sheets, turns, or, "All" if describes all three. a Helices Sheets BTurns All peptide bond of residue n is hydrogen-bonded to residue n+3 successive R groups point in opposite directions backbone NH groups are to bavkronenco peptide bond of residue n is hydrogen-bonded to residue n+4 to backbone C-O groups electric dipole of peptide bonds generates a net dipole

Explanation / Answer

Peptide bond of residue n is hydrogen bonded to residue n+3: beta turn

successive R groups point in opposite direction: beta sheets

Backbone NH groups areH-bonded to backbone C=O groups: All

Peptide bond of residue n is hydrogen bonded to residue n+4: alpha helix

electric dipole of peptide bonds generates a net dipole: alpha helix

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