Related Experiment Videos
Preliminary X-ray study of naproxen esterase from Bacillus subtilis
J M van der Laan1, A V Teplyakov, A A Lammers
1Royal Gist-brocades N.V. Research and Development, Delft, The Netherlands.
Journal of Molecular Biology
|March 20, 1993
Summary
Single crystals of naproxen esterase from Bacillus subtilis were successfully grown using a liquid-liquid diffusion method. These crystals are suitable for X-ray structure analysis, advancing research in enzyme crystallography.
Area of Science:
- Biochemistry
- Crystallography
- Structural Biology
Background:
- Naproxen esterase from Bacillus subtilis is an enzyme with potential biotechnological applications.
- Understanding the enzyme's structure is crucial for functional and mechanistic studies.
Purpose of the Study:
- To obtain high-quality single crystals of naproxen esterase suitable for X-ray diffraction analysis.
- To determine the crystallographic parameters for structural determination.
Main Methods:
- Protein crystallization using liquid-liquid diffusion with PEG6000 solutions.
- Application of a temperature gradient (4°C to room temperature) over four weeks.
- X-ray diffraction data collection to assess crystal quality and resolution.
Main Results:
- Single crystals of naproxen esterase were obtained.
- The crystals belong to the trigonal space group P3(1)21 or P3(2)21.
- Unit cell dimensions: a = b = 47.59 Å, c = 212.91 Å.
- The crystals diffract to at least 3.0 Å resolution.
Conclusions:
- The obtained crystals are well-ordered and suitable for X-ray structure determination.
- This work provides the foundation for elucidating the three-dimensional structure of naproxen esterase.
- The structural insights could facilitate enzyme engineering and application development.