Correlation profiles and the C(k) curves. Correlation profile and C(k) curves of (A) protein network, (B) genetic network, (C) gene coexpression network and (D) metabolic network of E.coli with 21 currency metabolites (i.e. ATP and NADH) removed. Green rectangles in (A) and (B) are the C(k) curves of two simulated random networks.
Hao et al. BMC Systems Biology 2012 6:34 doi:10.1186/1752-0509-6-34