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Purification, crystallization and preliminary X-ray crystallographic analysis of rice Bowman-Birk inhibitor from Oryza sativa.


ABSTRACT: Bowman-Birk inhibitors (BBIs) are cysteine-rich proteins with inhibitory activity against proteases that are widely distributed in monocot and dicot species. The expression of rice BBI from Oryza sativa is up-regulated and induced by pathogens or insects during germination of rice seeds. The rice BBI (RBTI) of molecular weight 15 kDa has been crystallized using the hanging-drop vapour-diffusion method. According to the diffraction of rice BBI crystals at a resolution of 2.07 A, the unit cell belongs to space group P2(1)2(1)2(1), with unit-cell parameters a = 74.37, b = 96.69, c = 100.36 A. Preliminary analysis indicates four BBI molecules in an asymmetric unit, with a solvent content of 58.29%.

SUBMITTER: Lin YH 

PROVIDER: S-EPMC2243081 | biostudies-literature | 2006 Jun

REPOSITORIES: biostudies-literature

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Purification, crystallization and preliminary X-ray crystallographic analysis of rice Bowman-Birk inhibitor from Oryza sativa.

Lin Yi-Hung YH   Li Hsin-Tai HT   Huang Yen-Chieh YC   Hsieh Ying-Cheng YC   Guan Hong-Hsiang HH   Liu Ming-Yih MY   Chang Tschining T   Wang Andrew H-J AH   Chen Chun-Jung CJ  

Acta crystallographica. Section F, Structural biology and crystallization communications 20060505 Pt 6


Bowman-Birk inhibitors (BBIs) are cysteine-rich proteins with inhibitory activity against proteases that are widely distributed in monocot and dicot species. The expression of rice BBI from Oryza sativa is up-regulated and induced by pathogens or insects during germination of rice seeds. The rice BBI (RBTI) of molecular weight 15 kDa has been crystallized using the hanging-drop vapour-diffusion method. According to the diffraction of rice BBI crystals at a resolution of 2.07 A, the unit cell bel  ...[more]

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