secondary structure

https://doi.org/10.1351/goldbook.S05530
The conformational arrangement (α-@H02769@, β-pleated sheet, etc.) of the @B00574@ segments of a macromolecule such as a polypeptide chain of a protein without regard to the @C01258@ of the side chains or the relationship to other segments.
See also:
primary structure
,
tertiary structure
,
quaternary structure
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2218 [Terms] [Paper]