6Q5P

Crystal structure of a CC-Hex mutant that forms a parallel six-helix coiled coil CC-Hex*-II

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	293	50 mM SPG buffer (succinic acid, sodium phosphate monobasic monohydrate, glycine), 25 % w/v PEG1500

Crystal Properties
Matthews coefficient	Solvent content
2.42	49.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.763	α = 90
b = 62.763	β = 90
c = 82.616	γ = 120

Symmetry
Space Group	P 63

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	80	PIXEL	DECTRIS PILATUS3 6M		2018-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03	0.9163	Diamond	I03

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.44	82.61	100	0.143	0.151	0.047	0.999	11.5	19.9		33440			16.501

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.44	1.48	100		3.712	3.923	1.265	0.537	1.1	19

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.44	54.41	31709	1680	99.94	0.16484	0.16449	0.17064	RANDOM	23.751

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.16	-0.08		-0.16		0.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.534
r_dihedral_angle_3_deg	11.735
r_long_range_B_refined	7.224
r_long_range_B_other	7.222
r_scangle_other	6.037
r_scbond_it	4.17
r_scbond_other	4.141
r_dihedral_angle_1_deg	3.41
r_mcangle_other	3.227
r_mcangle_it	3.221
r_mcbond_it	2.533
r_mcbond_other	2.513
r_angle_other_deg	1.484
r_angle_refined_deg	1.398
r_chiral_restr	0.074
r_bond_refined_d	0.009
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1366
Nucleic Acid Atoms
Solvent Atoms	185
Heterogen Atoms	16

Software

Software
Software Name	Purpose
REFMAC	refinement
DIALS	data reduction
Aimless	data scaling
PHASER	phasing