>d1ykhb1 a.252.1.1 (B:2-130) RNA polymerase II holoenzyme component SRB7 (MED21) {Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932]} tdrmtqlqicldqmteqfcatlnyidknhgfevvppeefsntidelstdiilktrqinkl idslpgvdvsaeeqlrkidmlqkklvevedekieaikkkeklmrhvdsmiedfv