| 释义 |
secondary structure
secondary structuren. The three-dimensional structure of the polypeptide backbone of a protein (such as alpha helix, beta sheet, and coil patterns), or the sugar-phosphate backbone of a nucleic acid (such as the double helix pattern of DNA).secondary structure
secondary structure[′sek·ən‚der·ē ′strək·chər] (biochemistry) The conformation of a protein or peptide molecule with respect to nearest-neighbor amino acids. (geology) A structure such as a fault, fold, or joint resulting from tectonic movement that started after the rock in which it is found was emplaced. (paleontology) A coarse structure usually between the thin sheets in the protective wall of a tintinnid. secondary structure
sec·on·dar·y struc·turethe localized arrangement in space of regions of a biopolymer; often these types of structures are regular and recurring along one dimension, for example, the α-helix often found in proteins.secondary structuren. The three-dimensional structure of the polypeptide backbone of a protein (such as alpha helix, beta sheet, and coil patterns), or the sugar-phosphate backbone of a nucleic acid (such as the double helix pattern of DNA). |