In proteins and nucleic acids, the three-dimensional structure of the molecule brought about by its folding upon itself.
In proteins, overall three-dimensional form of a polypeptide chain, which is stabilized by multiple noncovalent interactions between side chains.
Complex three-dimensional form of a macromolecule, especially a protein.
In reference to a protein, the relative locations in three-dimensional space of all the atoms in the molecule. The overall shape of a protein. (Contrast with primary, secondary, and quaternary structures.)
The overall three-dimensional structure of a biopolymer. For proteins this involves the side chain interactions and packing of secondary structure motifs. For nucleic acids this may be the packing of stem-loops or supercoiling of double helices.
The three-dimensional folding of polypeptide chains in a protein molecule.
The protein structure that results from interactions among distant portions of the same molecule; complex coiling and folding.
The level of protein structure that involves the manner in which the entire protein chain is folded into a specific three-dimnesional arrangement.
The interactions between the side chains on amino acids in a protein that help determine the structure of the protein.
The three-dimensional conformation of a protein. Proteins fold into their tertiary structure to assume the most stable energetic state, where the cell does not need to input energy to maintain the structure of the protein. Stability is also correlated with function; unstable conformations are not functional and are often destroyed by the cell. In addition, proper structure is required for the protein-protein interactions that characterize ligand-receptor interactions, enzyme-substrate interactions and the protein-protein interactions that lead to quaternary structure. See also Conformation, Primary Structure, Quaternary Structure, Secondary Structure, Structural Biology.
TER-she-air-ee STRUK-sure The shape a protein assumes when amino acids far apart in the primary structure chemically attract one another. 49
The overall fold of a protein sequence, formed by the packing of its secondary and/or super-secondary structure elements.
The folds, bends, and twists in protein or nucleic acid structure.
Folding of a protein chain via interactions of its sideschain molecules including formation of disulphide bonds between cysteine residues.
The complete 3D structure of a protein.
The folding of a protein's secondary structure into a functional three-dimensional configuration.
the folding of the elements of secondary structure, such as alpha helices and beta-sheet.
the overall shape of a protein, long and narrow or globular, maintained by different types of intramolecular interactions.
In biochemistry, the tertiary structure of a protein is its overall shape, also known as its fold. Protein molecules are linear chains of amino acids that typically assume a specific three-dimensional structure in which they perform their biological function. The study of protein tertiary structure is known as structural biology.