5820
We produced a transgenic mouse line that expresses simian virus ( SV40 ) transforming sequences under control of the 1 . 4 kb tyrosinase - related protein 1 ( TRP - 1 ) promoter , targeting expression of T antigen ( Tag ) to the RPE .
 RPE
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 RPE