3344
Furthermore , its genetic encodability and modular design should facilitate the adaptation of this approach to control different cellular activities as a function of phosphorylation - dependent input signals , thereby providing versatile tools for potentially perturbing or rewiring signaling pathways .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None