Expression, purification and X-ray crystal diffraction analysis of alcohol dehydrogenase 1 from Artemisia annua L.
Protein Expr Purif
; 187: 105943, 2021 11.
Article
em En
| MEDLINE
| ID: mdl-34273542
ABSTRACT
Alcohol dehydrogenase 1 identified from Artemisia annua (AaADH1) is a 40 kDa protein that predominately expressed in young leaves and buds, and catalyzes dehydrogenation of artemisinic alcohol to artemisinic aldehyde in artemisinin biosynthetic pathway. In this study, AaADH1 encoding gene was subcloned into vector pET-21a(+) and expressed in Escherichia coli. BL21(DE3), and purified by Co2+ affinity chromatography. Anion exchange chromatography was performed until the protein purity reached more than 90%. Crystallization of AaADH1 was conducted for further investigation of the molecular mechanism of catalysis, and hanging-drop vapour diffusion method was used in experiments. The results showed that the apo AaADH1 crystal diffracted to 2.95 Å resolution, and belongs to space group P1, with unit-cell parameters, a = 77.53 Å, b = 78.49 Å, c = 102.44 Å, α = 71.88°, ß = 74.02°, γ = 59.97°. The crystallization condition consists of 0.1 M Bis-Tris pH 6.0, 13% (w/v) PEG 8000 and 5% (v/v) glycerol.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Álcool Desidrogenase
/
Proteínas Recombinantes
/
Artemisia annua
/
Artemisininas
Idioma:
En
Revista:
Protein Expr Purif
Assunto da revista:
BIOLOGIA MOLECULAR
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China