Table I.

Loss of E2A in SS tumor cells

Patient no.	Loss of E2A		Purity of enriched tumor cells
	Array CGH analysis	FISH analysis (number of cells with deletion/number of analyzed cells)
			%
1	yesc	yes (149/200)e	96.7
2	yesc	n.d	–
3	yesc	yes (198/200)e	99.1
4a	yesc	yes (167/200)e	93.2
5	yese	yes (90/200)e	97.9
6	yesd	n.d.	–
7a	yesc	no (14/200)e	99.2f
8	yese	n.d.	–
9	noc	no (3/200)e	97.4
10	noc	no (4/200)e	96.9
11a	yese	no (12/200)d	n.d.
12	noc	n.d.	–
13	yesc	yes (126/200)e	98.4f
14	noc	n.d.	–
15a	nobc	yes (106/200)d	n.d.
16a	noe	yes (loss 28/200, gain 46/200)e	97.2
17	yese	yes (50/200)e	98.4
18	yesc	n.d.	–
19	yese	n.d.	–
20	yese	n.d.	–
Se-Ax cell line	yes	yes (190/200)

n.d.: not determined

^aCGH and FISH analyses were performed with samples from different time points (see Table S1).

^bhypotriploid cells, gain of chromosome 19 except 19p13.2-13.3.

^cAnalysis of PBMC cells.

^dAnalysis of CD4-sorted cells.

^eAnalysis of Vβ-sorted cells.

^fPurity was determined with CD4 antibody only.