1.
Acta Crystallogr D Biol Crystallogr
; 59(Pt 8): 1459-61, 2003 Aug.
Article
in English
| MEDLINE
| ID: mdl-12876350
ABSTRACT
Laccase from the fungus Coriolus hirsutus has been purified. Crystals of the enzyme suitable for X-ray structure analysis have been obtained under optimized crystallization conditions using polyethylene glycol as a precipitant. The crystals belong to space group P2(1)2(1)2(1), with unit-cell parameters a = 50.65, b = 74.01, c = 124.83 A, and contain 40% solvent and a single molecule of laccase in the asymmetric unit. X-ray data were collected to 1.85 A at the copper edge and the four copper sites have been located from the anomalous signal. The obtained SAD phases with subsequent density modification produced a promising initial electron-density map.