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Biological Macromolecules
Proteins
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Concept Version 14
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Protein Structure

Secondary structure

Secondary structure

The α-helix and β-pleated sheet form because of hydrogen bonding between carbonyl and amino groups in the peptide backbone. Certain amino acids have a propensity to form an α-helix, while others have a propensity to form a β-pleated sheet.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "OpenStax College, Proteins. October 16, 2013."
    http://cnx.org/content/m44402/latest/Figure_03_04_07.jpg OpenStax CNX CC BY 3.0.

Related Terms

  • β-pleated sheet
  • α-helix
  • antiparallel
  • disulfide bond
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