Figure 2 - full size

 

Figure 2.
Figure 2. Model of L30e in its ribosomal environment. (a) Wheat germ L30e amino acid sequence with cylinders and arrows indicating -helical and -strand secondary structure, respectively. (b) Top, L30e density at different contour levels (2.5 and 1 ). Bottom, adjusted homology model of L30e in transparent EM density and L30e crystal structure (green, PDB entry, chain D1NMUD). Note the different conformation of 4. (c) Ribosomal environment of L30e (accession code 1YSH in the Protein Data Bank). Blue, 25S RNA; orange, L37Ae and unknown protein cluster II; magenta, L30e; yellow, 18S RNA; green, S13e (S15p). Ribosome indicates orientation. (d) L30e conformation in the post state and in the eEF2-bound state of the 80S ribosome. The same region of the 60S subunit is shown in the post state (left, wg ribosome, filtered to 13) and in the eEF2-bound state (right, yeast ribosome at 12). B4 and eB9 indicate intersubunit bridges. Note the differences in the density for 4 of L30e (magenta).

The above figure is reprinted by permission from Macmillan Publishers Ltd: Nat Struct Mol Biol (2005, 12, 467-468) copyright 2005.