19578
Long - distance trafficking of Jacob from synaptic , but not extrasynaptic , sites depends on ERK activity , and association with fragments of the intermediate filament alpha - internexin hinders dephosphorylation of the Jacob / ERK complex during nuclear transit .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None