Experiment: 5QDD

Crystal structure of BACE complex with BMC020 hydrolyzed

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	hanging drop	5	292	CRYSTALS WERE GROWN AT 19C BY VAPOUR DIFFUSION IN HANGING DROPS FROM 1.0M AMMONIUM PHOSPHATE, 0.1M SODIUM CITRATE PH 5.0. PROTEIN STOCK WAS BACE MUT46B BATCH XIV 6.3MG/ML IN 10MM TRIS-HCL PH 7.4, 25MM NACL, WITH A 7-FOLD EXCESS OF BMC020 ADDED FROM A 50MM STOCK SOLUTION IN 90% DMSO, 10% H2O. CRYO-PROTECTANT WAS 1.2M AMMONIUM PHOSPHATE, 0.1M SODIUM CITRATE, 25%(V/V)GLYCEROL, 2.0% DMSO, 1MM BMC020.

Crystal Properties
Matthews coefficient	Solvent content
3.03	59.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.729	α = 90
b = 102.67	β = 104.28
c = 100.037	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		2006-06-26	M	SINGLE WAVELENGTH

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

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	2.003	45.367	98	0.051				105373

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2	45.37	1.34	105373	5303	98	0.171	0.17	0.187	0.1973	48.3

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.665
f_angle_d	0.849
f_chiral_restr	0.06
f_bond_d	0.007
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8764
Nucleic Acid Atoms
Solvent Atoms	311
Heterogen Atoms	108

Software

Software
Software Name	Purpose
PHENIX	refinement
CNX	refinement
CNX	phasing
SCALEPACK	data scaling
HKL-2000	date reduction
PDB_EXTRACT	data extraction