1795
In vitro transcription extracts from ret1 - 1 cells terminate less efficiently at weak transcription termination signals than those from RET1 cells , using a variety of tRNA templates .
 ret1 - 1, RET1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 ret1 - 1, RET1