Experiment: 6S6N

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		Poly Ala alpha-helix

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	Reservoir contained 0.1 M HEPES pH 7.5, 1.4 M sodium citrate

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.15	α = 90
b = 41.15	β = 90
c = 57.28	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	100	PIXEL	DECTRIS PILATUS3 2M		2018-05-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.873	ESRF	ID23-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim 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	1.1	35.64	99.4	0.056	0.057	0.999	31.12	18.242		12186			13.999

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.1	1.13	92.1		0.552	0.598	0.904	3.14	6.433

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	Poly Ala alpha-helix	1.1	35.64	10967	1219	99.41	0.1613	0.1595	0.16	0.1788	0.18	RANDOM	12.505

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]
0.15	0.07		0.15		-0.47

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.577
r_dihedral_angle_3_deg	11.929
r_dihedral_angle_4_deg	6.917
r_dihedral_angle_1_deg	3.214
r_rigid_bond_restr	1.731
r_angle_refined_deg	1.708
r_angle_other_deg	1.528
r_chiral_restr	0.099
r_bond_refined_d	0.014
r_gen_planes_refined	0.007

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.577
r_dihedral_angle_3_deg	11.929
r_dihedral_angle_4_deg	6.917
r_dihedral_angle_1_deg	3.214
r_rigid_bond_restr	1.731
r_angle_refined_deg	1.708
r_angle_other_deg	1.528
r_chiral_restr	0.099
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	234
Nucleic Acid Atoms
Solvent Atoms	56
Heterogen Atoms

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.