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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.

Nitrogenase molybdenum,iron protein, Av1, (2min) 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?

Peters, J. W., M. H. Stowell, S. M. Soltis, M. G. Finnegan, M. K. Johnson, and D. C. Rees. 1997. Redox-dependent structural changes in the nitrogenase P-cluster. Biochemistry 36:1181-1187.

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