Table 1. List of TRN1/2-interacting proteins as identified by tandem MS.

No.	Mr	Proteins	GenBank accession no.	TRN1	TRN2
1	90	RNA-binding protein EWS	Q01844	+	n.a.
		HSP90	P07900	+	n.a.
2	85	Cyclin T1	O60563	+	n.a.
3	74	RNA helicase DDX3	O00571	+	n.a.
4	68	hnRNP M	P52272	+	+
		RNA-binding protein FUS	S33799	+	+
		HSP70	P11142	+	+
5	66	Pre-mRNA cleavage factor I	NP_008938	n.a.	+
		68-kDa subunit (CPSF6)
6	60	GAP-associated tyrosine phosphoprotein p62 (Sam68)	A38219	+	+
		TCP-1-γ	P49368	+	+
7	58	HMBA-inducible protein	AAH06460	+	+
8	53	hnRNP H1	P31943	+	+
9	49	hnRNP F	S43484	+	n.a.
		Y box-binding protein 1	I39382	+	n.a.
10	34	hnRNP A1	S04617	+	n.a.
		PQBP-1 (polyglutamine tract-binding protein)	NP_005701	+	n.a.

n.a., not analyzed.