4QF0

Structure of a 16 nm protein cage designed by fusing symmetric oligomeric domains, quadruple mutant, P21212 form

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 24-ID-C
Synchrotron site	APS
Beamline	24-ID-C
Temperature [K]	100
Detector technology	PIXEL
Collection date	2013-12-08
Detector	DECTRIS PILATUS 6M-F
Wavelength(s)	0.97920
Spacegroup name	P 21 21 2
Unit cell lengths	175.500, 147.730, 167.630
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	93.710 - 6.494
R-factor	0.2739
Rwork	0.271
R-free	0.32420
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.007
RMSD bond angle	1.007
Data scaling software	XSCALE
Phasing software	PHASER (2.5.6)
Refinement software	REFMAC (5.8.0071)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	93.710	93.710	6.660
High resolution limit [Å]	6.490	29.040	6.490
Rmerge	0.086	0.047	0.819
Number of reflections	9001	122	613
<I/σ(I)>	14.16	36.26	2.34
Completeness [%]	99.6	95.3	96.1

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7	298	0.1 M Tris, pH 7.0, 10% PEG8000, 0.2 M magnesium chloride, 3% trehalose, VAPOR DIFFUSION, HANGING DROP, temperature 298K