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FIGURE 7.15 Two Domains in Arabinose Binding Protein

The arabinose binding protein of E. coli contains two open twisted a/ß domains of similar structure. A) Schematic diagram of a single domain. B) Topology diagram showing the orientation of the two domains and the crevice between them in which the arabinose molecule binds. From: Introduction to Protein Structure by Brandon & Tooze, 2nd ed., 1999. Garland Publishing, Inc., New York and London.

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