Before revision:  We demonstrate that the method captures the full dynamics of a simple cross-repressive transcriptional motif while simplifying analysis of the subnetwork and providing a natural interpretation of the memory functions .
After revision:  These memory functions provide probes of near-steady state dynamics, revealing information not easily accessible otherwise. We illustrate the method on a simple cross-repressive transcriptional motif while simplifying analysis of the subnetwork and providing a natural interpretation of the memory functions .