6Q5K

Crystal structure of a CC-Hex mutant that forms an antiparallel four-helix coiled coil CC-Hex*-L24K

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	DIAMOND BEAMLINE I04-1
Synchrotron site	Diamond
Beamline	I04-1
Temperature [K]	80
Detector technology	PIXEL
Collection date	2013-04-28
Detector	DECTRIS PILATUS 2M
Wavelength(s)	0.92
Spacegroup name	P 61 2 2
Unit cell lengths	69.280, 69.280, 35.441
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	24.780 - 1.650
R-factor	0.17395
Rwork	0.172
R-free	0.21834
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.013
RMSD bond angle	1.856
Data reduction software	MOSFLM
Data scaling software	Aimless (0.7.1)
Phasing software	PHASER (7.0.06)
Refinement software	REFMAC (5.8.0238)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	24.780	24.780	1.680
High resolution limit [Å]	1.650	9.040	1.650
Rmerge	0.071	0.029	1.356
Rmeas	0.073	0.030	1.393
Rpim	0.018	0.008	0.316
Number of reflections	6134	53	269
<I/σ(I)>	17.6	50.4	2.7
Completeness [%]	96.5	95.4	100
Redundancy	20.4	14.5	18.8
CC(1/2)		1.000	0.682

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	8	297	0.05 M Tris, 0.75 M ammonium sulfate