Table 1. Mass-spectrometric analysis of IDN2-6xMyc affinity purification.

Accession number	Protein	Mascot score	MW (Da)	1Matched queries	2Matched peptides	3Unique matches
Total IDN2-Myc purified proteins in WT
IPI00524938	AT3G48670 IDN2	2341	74778	118	45	118
IPI00523067	AT1G15910 IDP1	1480	72590	68	37	53
IPI00542085	AT4G00380 IDP2	444	73119	34	24	19
The ∼80 KDa band from IDN2-Myc purified proteins in WT
IPI00523067	AT1G15910 IDP1	2092	72590	135	54	88
IPI00542085	AT4G00380 IDP2	612	73119	59	30	12
IPI00524938	AT3G48670 IDN2	528	74778	33	26	33
The ∼80 KDa band from IDN2-Myc purified proteins in ros1idn2
IPI00523067	AT1G15910 IDP1	1891	72590	76	35	46
IPI00542085	AT4G00380 IDP2	606	73119	37	20	7
The ∼80 KDa band from IDN2E600Q-Myc purified proteins in ros1idn2
IPI00523067	AT1G15910 IDP1	829	72590	26	21	20
IPI00542085	AT4G00380 IDP2	208	73119	10	10	4
The ∼80 KDa band from IDN2W616A-Myc purified proteins in ros1idn2
IPI00523067	AT1G15910 IDP1	458	72590	25	15	19
IPI00542085	AT4G00380 IDP2	143	73119	10	8	4

The protein extracts were prepared from the IDN2-6xMyc transgenic plants in the wild-type and ros1idn2-4 mutant backgrounds and used for affinity purification of the IDN2-6xMyc-containing complex. Either total purified proteins or the ∼80-KDa band were subjected to mass-spectrometric analysis. Mascot score of each protein is shown. 1) The number is the total number of mass spectra matched to the corresponding protein, including the redundant ones that match to the same peptides. 2) The number is deduced from the “Matched queries” by removing the redundant peptides. 3) The number is calculated from “Matched queries” by removing the overlapped peptide sequences among its homologous protein family.