Figure 6 - full size

 

Figure 6.
Figure 6 Structure of Rna1p refined to 2.20 Å. (a) Representative view of the final 3F[o] - 2F[c] electron-density map. Shown is the region around leucine-rich repeat 8 (LRR8), contoured at 1.5 . (b) Ribbon representation of Rna1p. (c) Superimposition of the two independent molecules A (red) and B (blue) in the asymmetric unit (C^ backbone representation). Differences are found in the N-terminal region as well as in LRR3/LRR4. (d) Superimposition of Rna1p (molecules A and B in red and blue, respectively) and the complex of Rna1p (green) with Ran-GMPPNP-Mg-RanBP1 (PDB code 1k5d ). The Ran backbone is shown as a grey ribbon, GMPPNP in stick representation and Mg as magenta-coloured sphere. An enlargement of the region of the flexible loops of LRR3/LRR4 is shown. This region, which differs between molecules A and B in the high-resolution structure of Rna1p, coincides with part of the interface between Rna1p and Ran-GMPPNP. The flexibility in Rna1p may indicate an inherent mobility designed to allow an induced fit.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2006, 62, 750-765) copyright 2006.