%0 Journal Article %T Quasi-Stationary Approximation of a Dynamical Model of MicroRNA Target Regulation. Part II. Application of the QSSA Theorem %A Nikolova E. %A Herwig R. %A Petrov V. %J Bioautomation %D 2009 %I %X The QSSA theorem is applied to the dynamical model of microRNA target regulation after special selection of model variables, presented in Part I of this article. On the basis of this theorem the complete model, represented as a system of seven nonlinear ordinary differential equations, is reduced to a degenerate one, comprising only two ordinary differential equations. As a result it is proved that the proteins, produced by miRNAs are identified to play a driving role of the dynamical behaviour of the genetic process investigated, but in post-initial (or quasi-stationary) stage. %K QSSA theorem %K MicroRNA target regulation %K Proteins %K Post-initial state %U http://www.clbme.bas.bg/bioautomation/2009/vol_13.4/files/13.4_3.02.pdf