Figure 2
NE1406 exhibits domain duplication. (a) Stereo ribbon diagram of the N-terminal domain (residues 24–220, blue) of NE1406 superimposed onto the C-terminal domain (residues 221–352, gray). (b) Structure-guided alignment of the N- and C-terminal domains of NE1406. Secondary-structure elements are indicated in blue and gray for the N- and C-terminal domains, respectively. Identical residues are boxed in orange and conservative substitutions in purple. Ala74 is underlined to denote the eight-residue break in the chain between Ala74 and Ser83. The missing region was not modeled owing to poor electron density and is likely to be flexible. |