Table 1.

High frequency mtDNA variants among three epithelial ovarian tumor subtypes

Mitochondrial genes/regions	Nucleotide Position np	Mutation Frequency Total # of cases 102	% frequency in subtypes
			Serous	Endometrioid	Mucinous
D-loop	16487 del A1	73	87	69	39
D-loop	T16519C	52	47	74	50
D-loop	A73G	59	91	92	89
D-loop	A263G	93	36	60	72
12S rRNA	984 del C1	58	73	72	72
	C984G1	16
12S rRNA	A1438G	95	91	95	94
tRNAval	1648 del T1	93	98	92	72
tRNAval	1653 del T1	20	98	87	100
	T1653A1	76
tRNAval	1659 del T1	89	78	95	94
COX2	8237 del A1	68	82	49	67
ATP6	A8860G	96	96	97	83
ATP6	8877 del T1	49	40	44	78
ATP6	T8889 A1	51	93	87	83
	T8889C1	16
	8889del T1	24

¹ Not reported in mtDNA databank.

The frequency % of the three subtypes at np 984,1653 and 8889 represents the sum total of the different types of mutations occurring at that position.