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Crystallization of nitrite reductase from Achromobacter cycloclastes
S Turley1, E T Adman, L C Sieker
1Department of Biological Structure, University of Washington, Seattle 98195.
Journal of Molecular Biology
|March 20, 1988
Summary
Crystallographic data were obtained for nitrite reductase enzymes from Achromobacter cycloclastes and Alcaligenes faecalis S-6. These findings provide structural insights into copper-containing enzymes.
Area of Science:
- Biochemistry
- Crystallography
- Enzymology
Background:
- Nitrite reductase enzymes are crucial in microbial metabolism.
- Copper-containing proteins play vital roles in biological redox reactions.
- Understanding enzyme structure is key to elucidating function.
Purpose of the Study:
- To determine the crystallographic properties of nitrite reductase from Achromobacter cycloclastes.
- To obtain crystals of nitrite reductase from Alcaligenes faecalis S-6 for structural analysis.
- To characterize the crystal structure of a blue copper protein from Achromobacter cycloclastes.
Main Methods:
- X-ray crystallography was employed to analyze enzyme crystals.
- High-resolution diffraction data were collected.
- Space group and unit cell dimensions were determined for each crystal.
Main Results:
- Crystals of green copper-containing nitrite reductase from Achromobacter cycloclastes belong to space group P213.
- Nitrite reductase from Alcaligenes faecalis S-6 crystallized in space group P212121.
- Blue copper protein from Achromobacter cycloclastes crystallized in space group P21212.
Conclusions:
- The study successfully obtained high-resolution crystallographic data for key nitrite reductase enzymes.
- The determined space groups and cell dimensions are foundational for future structural studies.
- These results facilitate a deeper understanding of copper-dependent enzyme mechanisms.