4DUS

Structure of Bace-1 (Beta-Secretase) in complex with N-((2S,3R)-1-(4-fluorophenyl)-3-hydroxy-4-((6'-neopentyl-3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridin]-4'-yl)amino)butan-2-yl)acetamide

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.6	293	20% (w/v) PEG 5000 monomethylethyl ether (MME), 200mM sodium citrate, 200mM sodium iodide, , pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 102.309	α = 90
b = 102.309	β = 90
c = 169.758	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		CCD	ADSC QUANTUM 315		2009-02-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1	1.0	ALS	5.0.1

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	2.5	20	99.5	0.093	12	10.5	18831	18831

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	2.5	2.59	100		0.436		10.5	1833

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	2.5	20	18727	18727	968	99.26	0.2242	0.2209	0.2891	RANDOM	35.9526

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]
-0.83	-0.42		-0.83		1.25

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.569
r_dihedral_angle_3_deg	16.738
r_dihedral_angle_4_deg	16.089
r_dihedral_angle_1_deg	6.961
r_angle_refined_deg	1.393
r_chiral_restr	0.089
r_bond_refined_d	0.009
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2885
Nucleic Acid Atoms
Solvent Atoms	43
Heterogen Atoms	54

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
BOS	data collection
HKL-2000	data reduction
PHASER	phasing

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.