3K9E

Crystal structure of a putative Ribokinase II (Apo Form) from E.coli

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	NSLS BEAMLINE X25
Synchrotron site	NSLS
Beamline	X25
Temperature [K]	100
Detector technology	CCD
Collection date	2009-10-12
Detector	ADSC QUANTUM 315
Spacegroup name	P 21 21 21
Unit cell lengths	63.733, 87.668, 112.458
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	47.330 - 2.050
R-factor	0.228
Rwork	0.228
R-free	0.25700
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	3iq0
RMSD bond length	0.006
RMSD bond angle	1.200
Data reduction software	DENZO
Data scaling software	HKL-2000
Phasing software	MOLREP
Refinement software	CNS (1.1)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	2.120
High resolution limit [Å]	2.050	2.050
Rmerge		0.582
Number of reflections	39525
<I/σ(I)>	8.6	6.3
Completeness [%]	98.4	95.1
Redundancy	12.9	8.7

Crystallization Conditions

crystal ID	method	pH	temperature	details
1		5.5	298	0.2M Magnesium chloride, 0.1M Bis-Tris pH 5.5, 15% PEG 3,350, 8% pentaerythritol ethoxylate, VAPOR DIFFUSION, SITTING DROP, temperature 298K