4X2L

Crystal structure of human BACE-1 bound to Compound 6

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.9	298	20% PEG5000MME, 200 mM NaI, 200 mM NaCitrate, PH 6.9, BACE (8.3 mg/ml in 20 mM Tris, 250 mM NaCl, pH 7.5)

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.04

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 103.42	α = 90
b = 103.42	β = 90
c = 168.33	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 PILATUS 6M		2013-06-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1.0000	APS	17-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	2.55	168.327	100	0.093	0.098	0.023	28.5	17.1	18008	18008			52.78

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.55	2.69	100		0.42	0.42	0.143	1.9	10.3	2551

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		THROUGHOUT	2.55	89.57	17954	917	99.59	0.191	0.1884	0.2385	RANDOM	41.78

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]
0.9457			0.9457		-1.8914

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	18.03
t_omega_torsion	3.5
t_angle_deg	1.12
t_bond_d	0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_pseud_angle
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2909
Nucleic Acid Atoms
Solvent Atoms	92
Heterogen Atoms	58

Software

Software
Software Name	Purpose
SCALA	data scaling
BUSTER-TNT	refinement
PDB_EXTRACT	data extraction