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Nitrogenase (Av1, Av2) complex (1n2c) from Azotobacter vinelandii

• 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 the metal center and bound nucleotides?

Schindelin, H., C. Kisker, J. L. Schlessman, J. B. Howard, and D. C. Rees. 1997. Structure of ADP.AIF₄^--stabilized nitrogenase complex and its implications for signal transduction. Nature 387:370-376.

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