2HK0

Crystal structure of D-psicose 3-epimerase (DPEase) in the absence of substrate

Experimental procedure

Experimental method	MAD
Source type	SYNCHROTRON
Source details	PAL/PLS BEAMLINE 6B
Synchrotron site	PAL/PLS
Beamline	6B
Temperature [K]	297
Detector technology	CCD
Collection date	2005-05-16
Detector	BRUKER PROTEUM 300
Wavelength(s)	0.97900, 0.97913, 0.97133
Spacegroup name	P 21 21 21
Unit cell lengths	102.400, 113.000, 131.800
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	30.000 - 2.000
R-factor	0.197
Rwork	0.197
R-free	0.23300
Structure solution method	MAD
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	SOLVE (2.08)
Refinement software	CNS

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	30.000	2.070
High resolution limit [Å]	2.000	2.000
Rmerge	0.098	0.849
Number of reflections	99936
Completeness [%]	99.6	99
Redundancy	14.4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	8	295	14%(w/v) PEG 1000, 0.1M imidazole (pH 8.0), 0.2M calcium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K
1	VAPOR DIFFUSION, HANGING DROP	8	295	14%(w/v) PEG 1000, 0.1M imidazole (pH 8.0), 0.2M calcium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K
1	VAPOR DIFFUSION, HANGING DROP	8	295	14%(w/v) PEG 1000, 0.1M imidazole (pH 8.0), 0.2M calcium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K