Editing Interactome (section)

===Degree distribution===
The degree distribution describes the number of proteins that have a certain number of connections. Most protein interaction networks show a [[Scale-free network|scale-free]] ([[power law]]) degree distribution where the connectivity distribution P(k) ~ k<sup>−γ</sup> with k being the degree. This relationship can also be seen as a straight line on a [[log-log plot]] since, the above equation is equal to log(P(k)) ~ —y•log(k). One characteristic of such distributions is that there are many proteins with few interactions and few proteins that have many interactions, the latter being called "hubs".