4782
By screening a human testis cDNA library with a probe containing the mouse PEA3 ETS domain , we isolated a 2 . 2 kb clone containing a 510 AA open reading frame .
 GENE: mouse PEA3; GENE: ETS
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: mouse PEA3; GENE: ETS