Figure 4
From: Efficiency of the immunome protein interaction network increases during evolution
Comparison of degree distributions of all the nodes and the nodes with new connections in the immunome protein interaction network at evolutionary levels 0–7. Degree distribution for all the edges in the network is on the lower half of the subgraphs, while degree distribution only for nodes with new connections, representing the proteins with newly formed interactions, is on the upper half. P values for the Kruskal-Wallis Rank Sum Test are shown on the plots. Nodes with new connections have higher degrees than the others, and the difference is considered significant at levels 1, 2, 4, 5 and 6. Notches represent the 95% confidence interval of the median.