Figure 4.
MBP-Nmd3 interaction with the 60S subunit. (A and B) Close-up view of the quasiatomic structure of the 60S subunit (PDB ID 1S1I; Spahn et al., 2001), with the MBP-Nmd3 density showing connections with the rRNA helices (A) and nearby proteins (B). (C–E) Close-up views of the rRNA helices and the nucleotides showing altered protection patterns upon MBP-Nmd3 binding in the 50S subunit of the E. coli 70S ribosome crystal structure: H38 (C), H95 (D), and H65 and H69 (E). Nucleotides are colored as in Fig. 3 B.