Cloning, expression, purification, crystallization and preliminary X-ray crystallographic study of molybdopterin synthase from Thermus thermophilus HB8
- Bioinformatics Centre (Centre of Excellence in Structural Biology and Biocomputing), Indian Institute of Science, Bangalore 560 012 (India)
- RIKEN SPring-8 Center, Harima Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5148 (Japan)
The molybdopterin synthase from T. thermophilus HB8 was cloned, expressed, purified and crystallized. The crystals belong to space group P2{sub 1} and diffracted to a resolution of 1.64 Å. Thermus thermophilus is a Gram-negative aerobic thermophilic eubacterium which can grow at temperatures ranging from 323 to 355 K. In addition to their importance in thermostability or adaptation strategies for survival at high temperatures, the thermostable enzymes in thermophilic organisms contribute to a wide range of biotechnological applications. The molybdenum cofactor in all three kingdoms consists of a tricyclic pyranopterin termed molybdopterin that bears the cis-dithiolene group responsible for molybdenum ligation. The crystals of molybdopterin synthase from T. thermophilus HB8 belong to the primitive monoclinic space group P2{sub 1}, with unit-cell parameters a = 33.94, b = 103.32, c = 59.59 Å, β = 101.3°. Preliminary studies and molecular-replacement calculations reveal the presence of three monomers in the asymmetric unit.
- OSTI ID:
- 22360314
- Journal Information:
- Acta Crystallographica. Section F, Journal Name: Acta Crystallographica. Section F Journal Issue: Pt 4 Vol. 63; ISSN ACSFCL; ISSN 1744-3091
- Country of Publication:
- United Kingdom
- Language:
- English
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