Expression, purification, crystallization and X-ray analysis of 3-quinuclidinone reductase from Agrobacterium tumefaciens.
Acta Crystallogr Sect F Struct Biol Cryst Commun
; 68(Pt 10): 1237-9, 2012 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-23027756
ABSTRACT
(R)-3-Quinuclidinol is a useful chiral building block for the synthesis of various pharmaceuticals and can be produced from 3-quinuclidinone by asymmetric reduction. A novel 3-quinuclidinone reductase from Agrobacterium tumefaciens (AtQR) catalyzes the stereospecific reduction of 3-quinuclidinone to (R)-3-quinuclidinol with NADH as a cofactor. Recombinant AtQR was overexpressed in Escherichia coli, purified and crystallized with NADH using the sitting-drop vapour-diffusion method at 293â
K. Crystals were obtained using a reservoir solution containing PEG 3350 as a precipitant. X-ray diffraction data were collected to 1.72â
Å resolution on beamline BL-5A at the Photon Factory. The crystal belonged to space group P2(1), with unit-cell parameters a = 62.0, b = 126.4, c = 62.0â
Å, ß = 110.5°, and was suggested to contain four molecules in the asymmetric unit (V(M) = 2.08â
Å(3)â
Da(-1)).
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Quinona Redutases
/
Agrobacterium tumefaciens
Idioma:
En
Revista:
Acta Crystallogr Sect F Struct Biol Cryst Commun
Ano de publicação:
2012
Tipo de documento:
Article