Definition of secondary structure in English:

secondary structure


  • The local three-dimensional structure of sheets, helices, or other forms adopted by a polynucleotide or polypeptide chain, due to electrostatic attraction between neighbouring residues.

    • ‘In general, the secondary structure of the individual helices is very well conserved.’
    • ‘The secondary structure of all three proteins comprises [alpha] helices as well as [beta] sheets.’
    • ‘This indicates that the secondary structure at helices C and H is preserved upon adsorption to the lipid bilayer.’
    • ‘Several articles have suggested that some peptide secondary structures are fusogenic and some are not.’
    • ‘Despite having similar secondary structures, these peptides show different levels of activity and selectivity.’