sentence: Members of the TRAMP complex ( air1 Δ , air2 Δ , trf4 Δ , trf5 Δ ) , exosome complex ( rrp6 Δ , ski7 Δ , hbs1 Δ ) , and THO / TREX complex ( swt1 Δ , thp1 Δ , thp2 Δ ) did not affect the levels of RPL22 RNA species .