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The Ste50p-RA domain corresponding to aa 250-327 adopts an atypical RA domain fold. (A) The stereo view of the ensemble of 20 lowest-energy NMR structures of the Ste50p-RA domain. The first 10 residues were omitted from the figure for clarity. (B) Superposition of the Ste50p-RA domain (blue) with a canonical RA domain of RalGDS (tan; PDB code 1LXD).
