Web supplement accompanying Redefining Nodes and Edges: Relating 3D Structures to Protein Networks Provides Insight into their Evolution Philip M. Kim, Long J. Lu, Yu Xia & Mark Gerstein Science. 2006 Dec 22; 314: 1938-41. Comments in: Faculty of 1000 ("Exceptional paper") Science. 2006 Dec 22; 314: 1882-83 C&E News Jan 2007 Nature Genetics. 2007 39: 151