Hierarchical representation of the protein interaction network for the Ribonucleoprotein complex term. On the left, tree based on secondary distances. The tree on the right is shown to make the topology easier to visualize. At the bottom, "Unconnected proteins" are those with no direct interactions, which are separated from the rest by UVCLUSTER. Numbers refer to different clusters found for the same child GO term, which are again shown in Figure 3. snoRNP complex: Small nucleolar ribonucleoprotein complex; snRNP complex: Small nuclear ribonucleoprotein complex. NMD: nonsense-mediated mRNA decay. LSM: like-SM protein complex.