Before revision:  We found the universal behavior in almost one half of the 256 gene interaction networks in TCNG. The distribution of nearest neighbor level spacing of the gene interaction matrix becomes the Wigner distribution when the network is large (condensed) , and it behaves as Poisson distributionwhen the network is smaller. We also observe the transition between the Poisson and the Wigner distributions as the threshold of confidence factor of the gene interactions is shifted. We expect that the random matrix theory provides an effective analytical method for investigating the huge interaction networks of the various transcripts in cancer cells .
After revision:  We found the universal behavior in almost one half of the inferred gene interactions .