TABLE 1.

Identification of PB2 and binding partners by mass spectrometry

Accession code	Protein name	Mass (Da)	Mascot score	No. of unique peptides	Sequence coverage (%)
P3IV33	PB2	86,027	926	40	39
HHHU86	Hsp90-α	85,006	282	13	16
HHHU84	Hsp90-β	83,584	392	16	20
Q5SP17_HUMAN	Hsp70 1A	70,280	372	16	31
A38093	STIP1	63,227	179	9	17
A32800	Hsp60	61,187	385	14	32
S10486	CCTα	60,819	97	2	4
AAH06543	CCTɛ	60,089	95	6	11
TCPQ_HUMAN	CCTθ	60,022	207	6	14
Q6IBT3_HUMAN	CCTη	59,804	150	6	16
Q5SZY0_HUMAN	CCTγ	58,505	52	3	9
AAC96010	CCTδ	58,401	183	6	12
TCPZ_HUMAN	CCTζ	58,313	121	5	13
TCPB_HUMAN	CCTβ	57,663	270	10	23
JC5422	FKBP5	51,693	132	7	20
I77403	Tubulin-α-1	50,804	96	5	11
A26561	Tubulin-β	50,240	200	11	28
AAA73055	Mitochondrial protein p32	31,287	98	3	9