Download MendeleyInorganic pyrophosphatase crystals from Thermococcus thioreducens for X-ray and neutron diffraction.
Hughes, R.C., Coates, L., Blakeley, M.P., Tomanicek, S.J., Langan, P., Kovalevsky, A.Y., Garcia-Ruiz, J.M., Ng, J.D.(2012) Acta Crystallogr Sect F Struct Biol Cryst Commun 68: 1482-1487
- PubMed: 23192028
- DOI: https://doi.org/10.1107/S1744309112032447
- Primary Citation of Related Structures:
3Q3L, 3Q46, 3Q4W - PubMed Abstract:
Inorganic pyrophosphatase (IPPase) from the archaeon Thermococcus thioreducens was cloned, overexpressed in Escherichia coli, purified and crystallized in restricted geometry, resulting in large crystal volumes exceeding 5 mm3. IPPase is thermally stable and is able to resist denaturation at temperatures above 348 K. Owing to the high temperature tolerance of the enzyme, the protein was amenable to room-temperature manipulation at the level of protein preparation, crystallization and X-ray and neutron diffraction analyses. A complete synchrotron X-ray diffraction data set to 1.85 Å resolution was collected at room temperature from a single crystal of IPPase (monoclinic space group C2, unit-cell parameters a=106.11, b=95.46, c=113.68 Å, α=γ=90.0, β=98.12°). As large-volume crystals of IPPase can be obtained, preliminary neutron diffraction tests were undertaken. Consequently, Laue diffraction images were obtained, with reflections observed to 2.1 Å resolution with I/σ(I) greater than 2.5. The preliminary crystallographic results reported here set in place future structure-function and mechanism studies of IPPase.
Organizational Affiliation:
Department of Biological Sciences and Laboratory for Structural Biology, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
