5999
Mutations inactivating the tumor suppressor gene BRCA1 may be responsible for disease for up to 80% of familial ovarian cancer cases .
 tumor suppressor gene, BRCA1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 tumor suppressor gene, BRCA1