4RIK

Amyloid forming segment, AVVTGVTAV, from the NAC domain of Parkinson's disease protein alpha-synuclein, residues 69-77

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	273	0.9M Ammonium Phosphate, 0.1M Sodium Acetate, pH 4.6, vapor diffusion, hanging drop, temperature 273K

Crystal Properties
Matthews coefficient	Solvent content
1.52	19.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.864	α = 90
b = 4.799	β = 104.13
c = 17.263	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315		2011-08-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-E	0.9791	APS	24-ID-E

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	1.85	100	97.7	0.117	11.1	4.1	521	521		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.85	1.92	97.7		0.248		4	43

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	poly alanine	1.854	30	470	470	51	97.93	0.1802	0.1802	0.1758	0.2211	RANDOM	17.341

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]
-0.23		-0.06	-0.02		0.25

RMS Deviations
Key	Refinement Restraint Deviation
r_mcangle_it	8.406
r_dihedral_angle_1_deg	8.198
r_mcbond_it	5.852
r_mcbond_other	5.851
r_dihedral_angle_3_deg	5.082
r_angle_refined_deg	1.123
r_angle_other_deg	0.602
r_chiral_restr	0.049
r_bond_other_d	0.011
r_bond_refined_d	0.005

RMS Deviations
Key	Refinement Restraint Deviation
r_mcangle_it	8.406
r_dihedral_angle_1_deg	8.198
r_mcbond_it	5.852
r_mcbond_other	5.851
r_dihedral_angle_3_deg	5.082
r_angle_refined_deg	1.123
r_angle_other_deg	0.602
r_chiral_restr	0.049
r_bond_other_d	0.011
r_bond_refined_d	0.005
r_gen_planes_refined	0.002
r_gen_planes_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	57
Nucleic Acid Atoms
Solvent Atoms	3
Heterogen Atoms

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
DENZO	data reduction

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 R01GM133198.