Purification, crystallization and preliminary X-ray diffraction study on pyrimidine nucleoside phosphorylase TTHA1771 from Thermus thermophilus HB8
- Advanced Protein Crystallography Research Group, RIKEN SPring-8 Center, Harima Institute, 1-1-1 Kouto, Sayo-cyo, Sayo-gun, Hyogo 679-5148 (Japan)
The pyrimidine nucleoside phosphorylase TTHA1771 from T. thermophilus HB8 has been overexpressed, purified and crystallized. The crystals diffract X-rays to 1.8 Å resolution using synchrotron radiation. Pyrimidine nucleoside phosphorylase (PYNP) catalyzes the reversible phosphorolysis of pyrimidines in the nucleotide-synthesis salvage pathway. In order to study the structure–thermostability relationship of this enzyme, PYNP from the extreme thermophile Thermus thermophilus HB8 (TTHA1771) has been cloned, overexpressed and purified. The TTHA1771 protein was crystallized at 291 K using the oil-microbatch method with PEG 4000 as a precipitant. A native data set was collected to 1.8 Å resolution using synchrotron radiation. The crystal belongs to the monoclinic space group P2{sub 1}, with unit-cell parameters a = 58.83, b = 76.23, c = 103.86 Å, β = 91.3°.
- OSTI ID:
- 22360306
- Journal Information:
- Acta Crystallographica. Section F, Vol. 63, Issue Pt 4; Other Information: PMCID: PMC2330216; PMID: 17401202; PUBLISHER-ID: ll5101; OAI: oai:pubmedcentral.nih.gov:2330216; Copyright (c) International Union of Crystallography 2007; Country of input: International Atomic Energy Agency (IAEA); ISSN 1744-3091
- Country of Publication:
- United Kingdom
- Language:
- English
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