7BO8

A hexameric de novo coiled-coil assembly: CC-Type2-(VaYd)4-Y3F-W19(BrPhe)-Y24F.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	292	After 1:1 dilution with the peptide solution the resulting conditions were 0.05 M Sodium formate, 0.05 M Ammonium acetate, 0.05 M Sodium citrate tribasic dihydrate, 0.05 M Potassium sodium tartrate tetrahydrate, 0.05 M Sodium oxamate, 0.05 M Tris, 0.05 M BICINE, 6% v/v Ethylene glycol and 3% w/v PEG 8000

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 31.15	α = 90
b = 53.25	β = 90
c = 111.88	γ = 90

Symmetry
Space Group	P 21 21 21

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		2017-10-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03	0.91983	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	1.84	38.57	99.9	0.176	0.176	0.03	0.998	11.3	32.1		16884			45.32

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	1.84	1.89	100		2.209	2.299	0.632	0.61	0.8	13

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	SAD	THROUGHOUT	1.84	38.57	16006	824	99.88	0.204	0.2009	0.2665	RANDOM	47.797

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]
-0.81			1.04		-0.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.365
r_dihedral_angle_3_deg	15.702
r_dihedral_angle_1_deg	4.196
r_angle_refined_deg	1.418
r_angle_other_deg	1.347
r_chiral_restr	0.079
r_bond_refined_d	0.009
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1415
Nucleic Acid Atoms
Solvent Atoms	32
Heterogen Atoms	10

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
xia2	data scaling
CRANK2	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.