Additional file 1.

Figure S1.Quality of the electron density corresponding to representative residues (251–260) of the variable segment. Electron density map (2Fo-Fc contoured at 1σ) and the corresponding ball and stick models for residues Ile251-Gly260 of the (A) A-subunit of Form-I (salmon-red), (B) A-Subunit of Form-II (pale-yellow) and (C) B-subunit of Form-II (cyan), of StAckA are shown. These segments display large spatial separation in pairwise superposition of the three subunits (refer Figure 6 of the main text).

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Chittori et al. BMC Structural Biology 2012 12:24   doi:10.1186/1472-6807-12-24