Estrogen receptor alpha (ERα) mRNA copy numbers in immunohistochemically ERα-positive-, and negative breast cancer tissues

Table 1 ERα mRNA copy numbers in breast cancer tissues that were positive by IHC assay

#	Grading by IHC (Percent of positive cells)	ERα mRNA copy numbers per 10¹⁰ mRNA copies of GAPDH
1	100	1.50e⁸
2	100	6.50e⁶
3	100	1.33e⁸
4	100	1.00e⁸
5	100	3.00e⁸
6	100	2.20e⁷
7	100	2.50e⁷
8	100	6.50e⁸
9	100	2.00e⁵
10	99	2.25e⁸
11	98	1.33e⁸
12	98	7.14e⁷
13	98	4.50e⁸
14	97	4.50e⁸
15	95	8.00e⁷
16	91	2.06e⁸
17	90	5.71e⁷
18	90	2.50e⁸
19	90	3.80e⁷
20	90	2.08e⁸
21	90	4.50e⁷
22	90	8.50e⁷
23	90	2.50e⁶
24	90	1.88e⁸
25	90	1.80e⁷
26	90	1.25e⁸
27	90	2.86 e⁷
28	90	1.00 e⁸
29	90	3.00e⁷
30	90	4.17e⁶
31	90	3.75e⁸
32	90	8.50 e⁶
33	90	1.70e⁸
34	90	1.13e⁶
35	90	2.00e⁷
36	90	3.00e⁷
37	90	5.00e⁷
38	90	4.25e⁷
39	80	2.86e⁷
40	80	2.50e⁶
41	80	2.83e⁷
42	80	4.88e⁷
43	60	3.25e⁷
44	60	2.00e⁶
45	40	1.00e⁶
46	40	1.35e⁸
47	30	5.00e⁸
48	20	8.00e⁷
49	*+	2.06e⁷
50	*+	6.06e⁷
51	*+	4.0e⁷
52	*+	8.0e⁷
53	*+	5.0e⁶
54	*+	2.06e⁷
55	*+	3.06e⁷
56	*+	4.06e⁸
57	*+	6.06e⁷
58	*+	1.06e⁶
59	*+	4.06e⁸
60	*+	1.06e⁶
61	*+	8.0e⁶
62	*+	2.0e⁶
63	*+	3.0e⁷
64	*+	2.0e⁸
65	*+	1.0e⁶
66	*+	7.0e⁶
67	*+	2.0e⁷
68	*+	4.0e⁷
69	*+	8.0e⁶
70	*+	9.0e⁶

* These samples were collected at the time when the practice was to grade the samples as just Positive or Negative but no numerical scorings were given.