13376
Cellular fractionation assays demonstrated that TF treatment promoted the activating serine phosphorylation of GR , augmenting its cytoplasmic - to - nuclear translocation as well as its enrichment at glucocorticoid response elements on the glucocorticoid - induced leucine zipper gene promoter .
 Chemical: serine; Chemical: leucine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: serine; Chemical: leucine