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Eric C. Niederhoffer, Ph.D. Associate Professor of Biochemistry and Molecular Biology Southern Illinois University School of Medicine 600 Agriculture Drive, Carbondale, IL 62901-6503 Rm 112 Lindegren, 618-453-6467 eniederhoffer@siumed.edu Copyright 2000- , E.C. Niederhoffer. All Rights Reserved. All trademarks and copyrights are the property of their respective owners.

Phosphoenolpyruvate carboxykinase (1aq2) from Escherichia coli

• What structural elements are present in the protein?
• What is the subunit composition?
• What is the distance between metal centers?
• What is the coordination geometry about each metal ion?
• What is the distance between ATP, pyruvate, and the metal ions?

Tari, L. W., A. Matte, H. Goldie, and L. T. Delbaere. 1997. Mg²⁺-Mn²⁺ clusters in enzyme-catalyzed phosphoryl-transfer reactions [letter] Nat. Struct .Biol. 4:990-994.

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