6001
Sequencing of BRCA1 amplified from genomic DNA of lymphocytes and microdissected ovarian tumor cells of a familial ovarian cancer patient revealed three, rare heterozygous DNA variations ( 2418delA , 233G-->A , and IVS1-10T-->C ) in both tumor and constitutional (lymphocyte) DNA .
 ( DNA: genomic DNA, None) , ( cell type: lymphocytes, None) , ( cell type: microdissected ovarian tumor cells, None) , ( DNA: BRCA1, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: genomic DNA, None) , ( cell type: lymphocytes, None) , ( cell type: microdissected ovarian tumor cells, None) , ( DNA: BRCA1, None) 