Anomalous diffraction and ligand binding guide towards the elucidation of the function of a ‘putative β-lactamase-like protein’ from Brucella melitensis
2011

Understanding a Protein from Brucella melitensis

publication Evidence: moderate

Author Information

Author(s): Jan Abendroth, Sankaran Banumathi, Thomas E. Edwards, Anna S. Gardberg, Shellie Dieterich, Janhavi Bhandari, Alberto J. Napuli, Wesley C. Van Voorhis, Bart L. Staker, Peter J. Myler, Lance J. Stewart

Primary Institution: Seattle Structural Genomics Center for Infectious Disease

Hypothesis

What is the function of a β-lactamase-like protein from Brucella melitensis?

Conclusion

The study successfully elucidated the structure and potential function of a β-lactamase-like protein from Brucella melitensis, suggesting it may act as a hydrolase for nucleotides.

Supporting Evidence

  • The structure of the protein was solved using high-resolution data and anomalous diffraction.
  • Two manganese ions were identified in the active site of the protein.
  • The protein was found to bind to GMP and AMPPNP, suggesting a potential hydrolase function.

Takeaway

Scientists studied a protein from a bacteria that can make people sick, and they found out it might help break down certain molecules in the body.

Methodology

The protein was expressed in E. coli, purified, and crystallized, followed by X-ray data collection to determine its structure.

Limitations

The study did not confirm the biological function of the protein, which requires further validation.

Digital Object Identifier (DOI)

10.1107/S1744309111010220

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