2CW7

Crystal structure of intein homing endonuclease II

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SPRING-8 BEAMLINE BL41XU
Synchrotron site	SPring-8
Beamline	BL41XU
Temperature [K]	100
Detector technology	CCD
Detector	MARRESEARCH
Wavelength(s)	1.00
Spacegroup name	C 2 2 21
Unit cell lengths	107.700, 149.060, 146.130
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	38.390 - 2.700
R-factor	0.206
Rwork	0.206
R-free	0.24300
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	SEMET PI-TkoII
RMSD bond length	0.008
RMSD bond angle	1.300
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	CNS (1.0)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	40.000	2.800
High resolution limit [Å]	2.700	2.700
Rmerge	0.046	0.253
Number of reflections	30434
<I/σ(I)>	13.4	1.7
Completeness [%]	93.2	79.5
Redundancy	3.9

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7	293	Ammonium sulfate, Sodium phosphate, Sodium chloride, pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 293K