abstract:In a chain-like biological molecule, such as a protein or nucleic acid, a structural motif is a supersecondary structure, which also appears in a variety of other molecules. Motifs do not allow us to predict the biological functions: they are found in proteins and enzymes with dissimilar functions.
Each of these contains a "collection" of seven or so shoes that are the work of one designer, or are pieces from a single collector, or are creations that share a theme or structuralmotif.