The complete quaternary structure of Fel d 1 has been determined.

In contrast to native gel electrophoresis, quaternary structure cannot be investigated using this method.

This, the quaternary structure, is how the subunits fit together.

More generally, intrinsic viscosity can be used to assay quaternary structure.

Protein complexes are a form of quaternary structure.

Proteins have tertiary and quaternary structures which can be degraded or cause aggregation at room temperature.

Finally, a quaternary structure is a group of tertiary proteins coming together and binding.

It is a quaternary structure of a protein.

Other assemblies referred to instead as multiprotein complexes also possess quaternary structure.

For lack of better terms, structural information is usually classified as one of secondary, tertiary and quaternary structure.