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Trp repressor bound to DNA (1tro) from Escherichia coli

• What structural elements are present in the protein?
• What is the subunit composition?
• What is the distance between protein and DNA?
• Can you locate the corepressor?

Otwinowski, Z., R. W. Schevitz, R. G. Zhang, C. L. Lawson, A. Joachimiak, R. Q. Marmorstein, B. F. Luisi, and P. B. Sigler. 1988. Crystal structure of trp repressor/operator complex at atomic resolution. Nature 335:321-329.

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