The IID database module aimed to teach students about protein-protein interactions (PPI) and their significance in biological processes. Using two members of the GPCR family, CXCR2 and CXCR1, students learned how PPI data can be used to identify alternative pathways and to explore various search methods available in IID. The module included an exploration of interaction topology using degree and clustering coefficient concepts, and groups were assigned multiple genes and asked to map their interactions across the interactome, identifying context-specific interactions and topology.