12944
The inappropriate accumulation of RIF1 at DSBs in S phase is antagonized by BRCA1 , and deletion of Rif1 suppresses toxic nonhomologous end joining ( NHEJ ) induced by PARP inhibition in Brca1 - deficient cells .
 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