Crystal Structures of Two Isozymes of Citrate Synthase from Sulfolobus tokodaii Strain 7

Figure 7

Ion pairs and networks in the terminal domain of PF (a), SS-CS (b), ST1805-CS (c), ST0587-CS (d), and PF-CS (e). Polypeptide chains are shown with a cylinder model. Residues involved in ion pairs are drawn as a ball-and-stick model. Carbon, oxygen, and nitrogen atoms are shown in black, red, and blue, respectively. Hydrogen bonds are indicated as a dotted line.

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