From: The impact of horizontal gene transfer in shaping operons and protein interaction networks – direct evidence of preferential attachment
Category of interacting partners
Number of Interactions
Core to Core
3981 (74.0%)
Non-core to Non-core
35 (0.6%)
HGT to HGT
24 (0.4%)
Core to Non-core
606 (11.2%)
Core to HGT
687 (12.8%)
Non-core to HGT
55 (1.0%)
Total Interactions
5388 (100%)