Table 1. Peptides from Rpb complex identified via LC-MS after Rpb1-IP from 24-hr cell extracts.

Identified proteins	Pfam domain (identity)
Contig 18775.0.g49.t1_0	RNA_Pol_Rpb1_1, RNA_Pol_Rpb1_2, RNA_Pol_Rpb1_3, RNA_Pol_Rpb1_4, RNA_Pol_Rpb1_5, RNA_Pol_Rpb1_6, RNA_Pol_Rpb1_7 (Rpb1-a)
Contig 19200.0.g86.t1_1	RNA_pol_Rpb2_5, RNA_pol_Rpb2_4, RNA_pol_Rpb2_7, RNA_pol_Rpb2_6, RNA_pol_Rpb2_1, RNA_pol_Rpb2_3 (Rpb2-a)
Contig 486.1.g67.t1_1	RNA_pol_Rpb5_N, RNA_pol_Rpb5_C (Rpb5)
Contig 11798.0.g106.t1_0	RNA_pol_L_2 (Rpb11)
Contig 1141.1.g1.t1_0	RNA_pol_Rpb2_5, RNA_pol_Rpb2_4, RNA_pol_Rpb2_7, RNA_pol_Rpb2_6, RNA_pol_Rpb2_1, RNA_pol_Rpb2_3 (Rpb2-b)
Contig 14143.0.g92.t1_1	RNA_POL_M_15KD (Rpb9)
Contig 21831.0.g92.t1_1	SHS2_Rpb7-N, S1 (Rpb7)
Contig 12705.0.g18.t1_0	RNA_pol_L_2 (Rpb11)
Contig 19419.0.g46.t1_1	RNA_Pol_Rpb8 (Rpb8)