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Updated: Aug 11, 2026
Identification of Fatty Acids in Bacillus cereus
Published on: December 5, 2016
Purification, crystallization and preliminary characterization of a putative LmbE-like deacetylase from Bacillus
Vasiliki E Fadouloglou1, Dina Kotsifaki, Anastasia D Gazi
1Department of Biology, University of Crete, PO Box 2208, GR-71409 Heraklion, Crete, Greece.
Abstract:
The Bacillus cereus BC1534 protein, a putative deacetylase from the LmbE family, has been purified to homogeneity and crystallized using the hanging-drop vapour-diffusion method. Crystals of the 26 kDa protein grown from MPD and acetate buffer belong to space group R32, with unit-cell parameters a = b = 76.7, c = 410.5 A (in the hexagonal setting). A complete native data set was collected to a resolution of 2.5 A from a single cryoprotected crystal using synchrotron radiation. As BC1534 shows significant sequence homology with an LmbE-like protein of known structure from Thermus thermophilus, molecular replacement will be used for crystal structure determination.
Insights
The Bacillus cereus BC1534 protein, a deacetylase, was purified and crystallized. Its crystal structure will be determined using molecular replacement, aiding in understanding LmbE family functions.
Area of Science:
- Structural biology
- Biochemistry
- Crystallography
Background:
- The LmbE family of proteins are involved in essential cellular processes.
- Bacillus cereus BC1534 is a putative deacetylase belonging to the LmbE family.
Purpose of the Study:
- To purify and crystallize the Bacillus cereus BC1534 protein.
- To determine the crystal structure of BC1534 for structural and functional analysis.
Main Methods:
- Protein purification to homogeneity.
- Crystallization using hanging-drop vapour-diffusion method.
- X-ray diffraction data collection using synchrotron radiation.
Main Results:
- The 26 kDa BC1534 protein was successfully purified and crystallized.
- Crystals belonged to space group R32 with specific unit-cell parameters.
- A complete native data set was collected to 2.5 A resolution.
Conclusions:
- The BC1534 protein is suitable for X-ray crystallographic studies.
- Molecular replacement will be employed for structure determination, leveraging homology with known LmbE-like proteins.
