BrabA.11339.a: anomalous diffraction and ligand binding guide towards the elucidation of the function of a `putative β-lactamase-like protein' from Brucella melitensis
- Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA (United States); Emerald BioStructures Inc., Bainbridge Island, WA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Berkeley Center for Structural Biology
- Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA (United States); Emerald BioStructures Inc., Bainbridge Island, WA (United States)
- Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA (United States); Univ. of Washington, Seattle, WA (United States). School of Medicine. Dept. of Allergy and Infectious Diseases
- Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA (United States); Seattle Biomedical Research Inst., Seattle, WA (United States)
The crystal structure of a -lactamase-like protein from Brucella melitensis was initially solved by SAD phasing from an in-house data set collected on a crystal soaked with iodide. A high-resolution data set was collected at a synchroton at the Se edge wavelength, which also provided an independent source of phasing using a small anomalous signal from metal ions in the active site. Comparisons of anomalous peak heights at various wavelengths allowed the identification of the active-site metal ions as manganese. In the native data set a partially occupied GMP could be identified. When co-crystallized with AMPPNP or GMPPNP, clear density for the hydrolyzed analogs was observed, providing hints to the function of the protein.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1625808
- Journal Information:
- Acta Crystallographica. Section F, Vol. 67, Issue 9; ISSN 1744-3091
- Publisher:
- International Union of CrystallographyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Dual Specificity and Novel Structural Folding of Yeast Phosphodiesterase-1 for Hydrolysis of Second Messengers Cyclic Adenosine and Guanosine 3′,5′-Monophosphate
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journal | July 2014 |
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