Table S1.

Proteins captured by immunoprecipitation of TRAF6 from the extract of IL-1R* cells stimulated or not stimulated with IL-1β

	IL-1β (5 min)
	+	−
Protein	Unique peptides	Unique peptides
TRAF6	31	33
Pellino1	3	0
Pellino2	3	0
IRAK1	24	0
IRAK4	6	0
MyD88	10	0
IL-1R1	3	0

Proteins associated with TRAF6 immunoprecipitated from the extract of IL-1R* cells stimulated (+) or not stimulated (−) with IL-1β. The three unique peptides derived from Pellino1 and Pellino2 are highlighted in yellow and blue, respectively, in the sequence alignment of Pellino 1 and 2.