Instructions: Protein-Protein Interaction Networks (PPI) are composed of proteins interacting with each other and participate in various life processes such as biological signal transduction and gene expression regulation. "PPI Network" provided a network which shows the interaction between input genes. Help note: 1. Choose the Genomic; 2. Enter the Gene list; 3. Show a network and form to you. Click For Example: Example1, Example2, Example3.