6Q5M

Crystal structure of a CC-Hex mutant that forms an antiparallel four-helix coiled coil CC-Hex*-L24Dab

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	297	0.8 M Na/K hydrogen phosphate

Crystal Properties
Matthews coefficient	Solvent content
2.02	39.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 71.38	α = 90
b = 71.38	β = 90
c = 35.4	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	CCD	ADSC QUANTUM 315		2013-07-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03	0.9783	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	1.5	35.72	98.9	0.048	0.061	0.036	1	12	4.4		8775			16.469

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	1.5	1.53	100		1.173	1.331	0.619	0.703	1.1	4.4

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	1.5	35.72	8322	447	98.05	0.19413	0.19233	0.22386	RANDOM	29.245

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]
0.66	0.33		0.66		-2.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	22.368
r_dihedral_angle_3_deg	15.604
r_long_range_B_refined	8.003
r_long_range_B_other	7.826
r_scangle_other	6.904
r_scbond_it	4.46
r_scbond_other	4.375
r_mcangle_it	4.326
r_mcangle_other	4.319
r_dihedral_angle_1_deg	3.303
r_mcbond_it	3.025
r_mcbond_other	2.967
r_angle_refined_deg	1.82
r_angle_other_deg	1.524
r_chiral_restr	0.093
r_bond_refined_d	0.013
r_gen_planes_refined	0.008
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	380
Nucleic Acid Atoms
Solvent Atoms	39
Heterogen Atoms	1

Software

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