Figure 1
From: Connecting the dots in Huntington's disease with protein interaction networks
A schematic representation of a hypothetical protein-protein interaction network. Each sphere represents a protein and the connecting lines represent protein-protein interactions. Within an interaction network, smaller local interaction networks or 'clusters' may form (A-E). Proteins in clusters generally have similar functions, allowing prediction of the cellular function of uncharacterized proteins (U in cluster D) from the function of characterized proteins within the cluster (F).