Experiment: 3K5C

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	5.5	292	CRYSTALS WERE GROWN AT 19C BY VAPOUR DIFFUSION IN HANGING DROPS FROM 1.0M AMMONIUM SULFATE IN WATER. PROTEIN STOCK WAS BACE1 7.0MG/ML IN 10MM TRIS-HCL PH 7.4, 25MM NACL, WITH A 6-FOLD EXCESS OF NB-216 ADDED FROM A 50MM STOCK SOLUTION IN 90% DMSO-D6 (1.7% DMSO IN DROP). A SOLUTION CONTAINING 1.2M AMMONIUM SULFATE, 25% (V/V) GLYCEROL, 1.0MM NB-216 WAS USED AS CRYO-PROTECTANT., VAPOR DIFFUSION, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
3.05	59.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.752	α = 90
b = 103.186	β = 104.44
c = 100.144	γ = 90

Symmetry
Space Group	P 1 21 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	MARMOSAIC 225 mm CCD	MIRRORS	2006-08-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	0.97945	SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.12	70.55	99.7	0.048	0.048	15.2	3.8	91081	91081		-3	47.478

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.12	2.19	99.9		0.377	0.377	3.8	3.8	8430

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	2.12	70.55	91081	91081	9103	99.6	0.202	0.202	0.2	0.22	RANDOM	48.348

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]
-1.11		0.15	3.97		-2.85

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.4
c_scangle_it	3.07
c_mcangle_it	2.6
c_scbond_it	2.03
c_mcbond_it	1.56
c_angle_deg	0.9
c_improper_angle_d	0.61
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8925
Nucleic Acid Atoms
Solvent Atoms	468
Heterogen Atoms	126

Software

Software
Software Name	Purpose
XSCALE	data scaling
CNS	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
CNX	phasing
CNX	refinement

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.