Noise decomposition algorithm and propagation mechanism in feed-forward gene transcriptional regulatory loop
Gui Rong1, Li Zhi-Hong1, Hu Li-Jun1, Cheng Guang-Hui2, Liu Quan1, Xiong Juan1, Jia Ya3, Yi Ming1, 4, †
       

(color online) ((a)–(d)) Normalized variations of different genes for four different types of coherent feed-forward loops of OR-gates. Lines represent theoretical predictions, and solid markers refer to simulations using the Gillespie method. ((e)–(h)) Noise decompositions of downstream factor Z in four different types of coherent feed-forward loops of OR-gates.