1EGQ

ENHANCEMENT OF ENZYME ACTIVITY THROUGH THREE-PHASE PARTITIONING: CRYSTAL STRUCTURE OF A MODIFIED SERINE PROTEINASE AT 1.5 A RESOLUTION

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	ROTATING ANODE
Source details	RIGAKU RU300
Temperature [K]	285
Detector technology	IMAGE PLATE
Collection date	1999-06-16
Detector	MARRESEARCH
Spacegroup name	P 43 21 2
Unit cell lengths	68.290, 68.290, 106.360
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	10.000 - 1.550
R-factor	0.193 *
Rwork	0.193
R-free	0.20600
RMSD bond length	0.005
RMSD bond angle	1.300
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	AMoRE
Refinement software	REFMAC

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	10.000	1.650
High resolution limit [Å]	1.500	1.550
Rmerge	0.068	0.145
Total number of observations	240597 *
Number of reflections	34371
<I/σ(I)>	17.7
Completeness [%]	96.0	75
Redundancy	7.2	2.2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	MICRODIALYSIS	6.5	4 *	Sodium Nitrate, Calcium Chloride, Tris-HCl, pH 6.5, MICRODIALYSIS, temperature 277K

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	1	enzyme	10 (mg/ml)
2	1	1	Tris-HCl	50 (mM)
3	1	1		1 (mM)
4	1	2		1 (M)