The gene interaction network with the largest number of focal molecules (n = 18) including the NAALADL1 gene on OAR21 was assigned to infectious disease, cell-to-cell signalling and interaction, and cell movement. Also on OAR21, FAU or FAU Ubiquitin Like and Ribosomal Protein S30 Fusion is a protein coding gene. This evidence concerns the gene FAU and infectious disease.