Figure 4 - full size

Figure 4.
Figure 4 (A) Superposition of aaeNusG domain III (gold), r-protein L24 (blue) and the SMN tudor domain (red). F211 of aaeNusG and Y109 of the tudor domain, presumably important for contacting other proteins, are shown in ball-and-stick. (B) Domain III in complex with RNA molecules according to the L24−rRNA structure. The sequence originally identified as the KOW element is shown in red.