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. 2004 Jun 3;101(24):8900–8905. doi: 10.1073/pnas.0401904101

Fig. 1.

Fig. 1.

Stereoview representations of the three-dimensional cryo-EM structure of the 70S ribosome–RRF complex. (a) 70S ribosome, showing the shoulder side of the 30S subunit (yellow) on the left, and L7/L12-stalk side of the 50S subunit (blue) on the right to reveal the binding position of RRF (red). (b) Computationally separated RRF density superposed onto the 30S subunit. (c) RRF density superposed onto the 50S subunit. hd, head; sh, shoulder; sp, spur; pt, platform; L1, L1-protein protuberance; CP, central protuberance; St, L7/L12 stalk; Sb, stalk-base; SRL, α-sarcin-ricin loop; h and H followed by numbers identify the 16S and 23S rRNA helices, respectively; I and II, domains of RRF; asterisk, density of a tRNA in the P/E state.