Characteristics of microRNA co-target networks

► We construct microRNA co-target networks from the miRBase database. ► We investigate characteristics of microRNA networks. ► Positive assortative mixing networks can be characterized by small-world and scale-free attributes. ► Although the network is diluted, there is no percolation transition in the networks. ► We infer that the microRNAs in the network are clustered together to form a core group.