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Sulfite reductase (1aop) from Escherichia coli

• What structural elements are present?
• What is the subunit composition of the proteins?
• What are the major features of the active site?
• What is the distance between metal centers?

Crane, B. R., L. M. Siegel, and E. D. Getzoff. 1995. Sulfite reductase structure at 1.6 Å: evolution and catalysis for reduction of inorganic anions. Science 270:59-67.

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