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Morioka H, Miki Y, Saito K, Tomoo K, Ishida T, Hasegawa T, Yamano A, Takada C, Miyamoto K, Tsujibo H. Crystallization and preliminary X-ray crystallographic analysis of BxlA, an intracellular beta-D-xylosidase from Streptomyces thermoviolaceus OPC-520. Acta Crystallogr Sect F Struct Biol Cryst Commun 2010; 66:791-3. [PMID: 20606274 PMCID: PMC2898462 DOI: 10.1107/s1744309110013400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Accepted: 04/12/2010] [Indexed: 11/11/2022]
Abstract
BxlA from Streptomyces thermoviolaceus OPC-520, together with the extracellular BxlE and the integral membrane proteins BxlF and BxlG, constitutes a xylanolytic system that participates in the intracellular transport of xylan-degradation products and the production of xylose. To elucidate the mechanism of the hydrolytic degradation of xylooligosaccharides to xylose at the atomic level, X-ray structural analysis of BxlA was attempted. The recombinant BxlA protein (molecular weight 82 kDa) was crystallized by the hanging-drop vapour-diffusion method at 289 K. The crystals belonged to the monoclinic space group C2, with unit-cell parameters a = 142.2, b = 129.5, c = 101.4 A, beta = 119.8 degrees , and contained two molecules per asymmetric unit (V(M) = 2.47 A(3) Da(-1)). Diffraction data were collected to a resolution to 2.50 A and provided a data set with an overall R(merge) of 8.3%.
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Affiliation(s)
- Hideaki Morioka
- Department of Physical Chemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Yasuhiro Miki
- Department of Physical Chemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Kei Saito
- Department of Physical Chemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Koji Tomoo
- Department of Physical Chemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Toshimasa Ishida
- Department of Physical Chemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Tomokazu Hasegawa
- PharmAxess Inc., Biohills 308, 7-7-18 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
| | - Akihito Yamano
- PharmAxess Inc., Biohills 308, 7-7-18 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
| | - Chiaki Takada
- Department of Microbiology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Katsushiro Miyamoto
- Department of Microbiology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Hiroshi Tsujibo
- Department of Microbiology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
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