X-ray snapshots of quinone cofactor biogenesis in bacterial copper amine oxidase

Author(s):  
Misa Kim ◽  
Toshihide Okajima ◽  
Seiichiro Kishishita ◽  
Megumi Yoshimura ◽  
Asako Kawamori ◽  
...  
2002 ◽  
Vol 58 (s1) ◽  
pp. c298-c298
Author(s):  
M. Kim ◽  
T. Okajima ◽  
S. Kishishita ◽  
M. Yoshimura ◽  
A. Kawamori ◽  
...  

Author(s):  
Takeshi Murakawa ◽  
Mamoru Suzuki ◽  
Toshi Arima ◽  
Michihiro Sugahara ◽  
Tomoyuki Tanaka ◽  
...  

Recent advances in serial femtosecond X-ray crystallography (SFX) using X-ray free-electron lasers have paved the way for determining radiation-damage-free protein structures under nonfreezing conditions. However, the large-scale preparation of high-quality microcrystals of uniform size is a prerequisite for SFX, and this has been a barrier to its widespread application. Here, a convenient method for preparing high-quality microcrystals of a bacterial quinoprotein enzyme, copper amine oxidase from Arthrobacter globiformis, is reported. The method consists of the mechanical crushing of large crystals (5–15 mm3), seeding the crushed crystals into the enzyme solution and standing for 1 h at an ambient temperature of ∼26°C, leading to the rapid formation of microcrystals with a uniform size of 3–5 µm. The microcrystals diffracted X-rays to a resolution beyond 2.0 Å in SFX measurements at the SPring-8 Angstrom Compact Free Electron Laser facility. The damage-free structure determined at 2.2 Å resolution was essentially identical to that determined previously by cryogenic crystallography using synchrotron X-ray radiation.


Biochemistry ◽  
2005 ◽  
Vol 44 (36) ◽  
pp. 12041-12048 ◽  
Author(s):  
Toshihide Okajima ◽  
Sei'ichiro Kishishita ◽  
Yen-Chen Chiu ◽  
Takeshi Murakawa ◽  
Misa Kim ◽  
...  

1994 ◽  
Vol 238 (4) ◽  
pp. 635-637 ◽  
Author(s):  
Jung Hyeob Roh ◽  
Hideyuki Suzuki ◽  
Hidehiko Kumagai ◽  
Mitsuo Yamashita ◽  
Hiroyuki Azakami ◽  
...  

2011 ◽  
Vol 67 (a1) ◽  
pp. C225-C225
Author(s):  
H. Yamaguchi ◽  
M. Kataoka ◽  
H. Oya ◽  
A. Tominaga ◽  
M. Ohtsu ◽  
...  

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