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Nitrogenase iron protein before (1nip) and after (1n2c) complexation with the molybdenum,iron protein

• What changes have occurred upon complexation of the Fe protein (Av2) with the MoFe protein (Av1)? Hint: You will need to align the structures.

Georgiadis, M. M., H. Komiya, P. Chakrabarti, D. Woo, J. J. Kornuc, and D. C. Rees. 1992. Crystallographic structure of the nitrogenase iron protein from Azotobacter vinelandii. Science 257:1653-1659.

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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