scholarly journals Crystal structure of the short-chain flavin reductase HpaC from Sulfolobus tokodaii strain 7

2005 ◽  
Vol 81 (6) ◽  
pp. 229-232
Author(s):  
Masahiko OKAI ◽  
Norio KUDO ◽  
Koji NAGATA ◽  
Woo Cheol LEE ◽  
Masayuki KAMO ◽  
...  
2007 ◽  
Vol 365 (4) ◽  
pp. 903-910 ◽  
Author(s):  
Masahiro Fujihashi ◽  
Nobutaka Numoto ◽  
Yukiko Kobayashi ◽  
Akira Mizushima ◽  
Masanari Tsujimura ◽  
...  

2008 ◽  
Vol 71 (3) ◽  
pp. 1557-1562 ◽  
Author(s):  
Ken-ichi Miyazono ◽  
Masanari Tsujimura ◽  
Yutaka Kawarabayasi ◽  
Masaru Tanokura

2007 ◽  
Vol 69 (1) ◽  
pp. 204-208 ◽  
Author(s):  
Hua Ming ◽  
Yusuke Kato ◽  
Ken-ichi Miyazono ◽  
Kosuke Ito ◽  
Masayuki Kamo ◽  
...  

2008 ◽  
Vol 36 (14) ◽  
pp. 4808-4820 ◽  
Author(s):  
Thirumananseri Kumarevel ◽  
Noboru Nakano ◽  
Karthe Ponnuraj ◽  
Subash C. B. Gopinath ◽  
Keiko Sakamoto ◽  
...  

2014 ◽  
Vol 70 (a1) ◽  
pp. C488-C488
Author(s):  
Takae Yamauchi ◽  
Tomomi Fujii ◽  
Masahiro Yoshida ◽  
Tadao Oikawa ◽  
Yasuo Hata

Rhizobium sp. strain MTP-10005 uses the aromatic compound γ-resorcylate as a sole source of carbon and energy for growth. Resorcinol hydroxylase, which converts resorcinol to hydroxyquinol, plays an important role in the aerobic microbial catabolism of γ-resorcylate. Resorcinol hydroxylase from Rhizobium sp. strain MTP-10005 is a two-component enzyme consisting of the reductase and the monooxygenase components. The reductase component (GraD) is an oxidoreductase containing a flavin molecule as a cofactor. GraD catalyzes the NADH-dependent reduction of free FAD according to a ping-pong bisubstrate-biproduct mechanism. The reduced FAD is then used by the monooxygenase component GraA to hydroxylate resorcinol to hydroxyquinol. We have determined the three-dimensional structures of recombinant GraD with a bound FAD and in complex with NAD. GraD was crystallized at 293 K by the sitting-drop vapour-diffusion method using a precipitant solution containing 13 - 14% (w/v) PEG 2000, 6 - 9% (v/v) 2-propanol, 100 mM sodium citrate pH 5.6, 100 mM DTT and 200 μM FAD. The approximate dimensions of the obtained crystals were 0.1 × 0.1 × 0.15 mm3. The crystal diffracted to 1.8Å and belongs to space group P41212 with unit-cell parameters of a = b = 77.8 Å and c = 124.2 Å. The crystal structure has been determined by the molecular replacement and refined at 1.8 Å resolution. GraD exists as a homodimer, and each monomer contains an FAD. The probable binding site for NADH is covered with the N-terminal sub-domain in chain A, whereas the site is completely exposed to bulk solvent in chain B. The NAD-complex crystals were prepared by soaking the GraD crystals in the reservoir solution supplemented with NADH. The crystal diffracted to 1.8 Å, and the crystal structure was determined at 1.8 Å resolution. The Fo-Fc maps for the crystal soaked with NADH showed the electron densities corresponding to the nicotinamide ring and the adenyl moiety in chain B.


2002 ◽  
Vol 277 (14) ◽  
pp. 12200-12207 ◽  
Author(s):  
Kevin P. Battaile ◽  
JoAnn Molin-Case ◽  
Rosemary Paschke ◽  
Ming Wang ◽  
Dennis Bennett ◽  
...  

2010 ◽  
Vol 78 (10) ◽  
pp. 2399-2402 ◽  
Author(s):  
Atsuhiro Shimada ◽  
Hirohito Ishikawa ◽  
Noriko Nakagawa ◽  
Seiki Kuramitsu ◽  
Ryoji Masui

Sign in / Sign up

Export Citation Format

Share Document