6Q5H

Crystal structure of a CC-Hex mutant that forms an antiparallel four-helix coiled coil CC-Hex*-L24D

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	1.0 M Ammonium sulfate, 0.05 M Tris.

Crystal Properties
Matthews coefficient	Solvent content
1.95	37.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.2	α = 90
b = 70.2	β = 90
c = 35.58	γ = 120

Symmetry
Space Group	P 61 2 2

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		2018-03-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03	0.9763	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	1.2	15.87	99.9	0.098	0.016	0.022	1	17.2	36.3		16641			17.741

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	1.2	1.23	99.9		4.049	4.11	0.697	0.728		34.3

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	1.2	15.87	15774	843	99.71	0.15252	0.15097	0.17979	RANDOM	46.703

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]
0.35	0.17		0.35		-1.13

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_bonded	97.621
r_mcangle_other	57.682
r_mcangle_it	57.627
r_long_range_B_refined	49.02
r_long_range_B_other	47.7
r_mcbond_it	43.985
r_scbond_other	41.631
r_scbond_it	40.989
r_mcbond_other	38.215
r_dihedral_angle_2_deg	36.976
r_scangle_other	33.543
r_sphericity_free	33.421
r_rigid_bond_restr	30.685
r_dihedral_angle_3_deg	17.414
r_dihedral_angle_1_deg	3.641
r_angle_refined_deg	2.069
r_angle_other_deg	1.16
r_chiral_restr	0.111
r_bond_refined_d	0.019
r_gen_planes_refined	0.009
r_gen_planes_other	0.002
r_bond_other_d	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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	403
Nucleic Acid Atoms
Solvent Atoms	56
Heterogen Atoms	12

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing