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. 2009 Sep 16;65(Pt 10):1021–1031. doi: 10.1107/S0907444909026547

Figure 1.

Figure 1

Ribbon diagram of the T. denitrificans APS kinase. (a) The asymmetric unit is shown looking down the noncrystallographic threefold axis. Chains A (yellow), B (teal) and C (aqua) comprise one half of the hexamer. The biologically relevant hexamer is created through crystallographic twofold symmetry. (b) The monomer is shown with its N-terminal sulfurylase-like domain colored green. The APS kinase functional domain is colored blue. The black dashed lines signify the two stretches of undefined electron density.