Figure 1From: The topology of metabolic isotope labeling networksIllustrative example network. The network's cyclic subsystems given by node sets {x1, x2, x3} and {x4, x5, x6} share the same fluxes form algebraic subsystems, as well. The second cycle depends on the first. Node x7 depends on nodes x2 and x6 by a quadratic term.Back to article page