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Figure 2
Ribbon views of the DrTS dimer (a) and monomer (b) structures. The protein consists of a (β/α)8 barrel (red), subdomain B (blue), domain C (cyan) and two TS-unique modules (S7 in green and S8 in yellow). The bound Mg2+ and Ca2+ ions are shown as green and magenta spheres, respectively, with the Tris molecule shown as a stick representation. The dimeric interfaces are formed mainly by domain C and S8 and have a total buried area of ∼3000 Å2.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
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