Fig. 1
From: Grasping frequent subgraph mining for bioinformatics applications
Graph representation of a protein. a Protein consisting of n=7 amino acids represented as a single graph, visualised at three levels of granularity (bottom: fine granularity, top: coarse granularity). Each node is an atom and each edge is a covalent bond between two atoms. In the first and second representation from the top, the amino acid side chains (R groups) have been replaced with a symbol unique to their content. In the top representation the amino acid backbone has been simplified to a single chain connecting the side groups. b Example frequent subgraphs if Support s≥n, along with the support of each represented subgraph. c Example frequent subgraphs if Support s<n, along with the support of each represented subgraph