Experiment: 5QCQ

Crystal structure of BACE complex with BMC025

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	hanging drop		292	CRYSTALS WERE GROWN AT 19C BY VAPOUR DIFFUSION IN HANGING DROPS FROM 1.0M AMMONIUM SULFATE IN WATER. PROTEIN STOCK WAS BACE MUT46B BATCH XII 8.5MG/ML IN 10MM TRIS-HCL PH 7.4, 25MM NACL, WITH A 5-FOLD EXCESS OF BMC025 ADDED FROM A 50MM STOCK SOLUTION IN 90% DMSO-D6 (1.8% DMSO IN DROP). A SOLUTION CONTAINING 1.2M AMMONIUM SULFATE, 25% GLYCEROL, 1MM BMC025 AND 1.8% DMSO WAS USED AS CRYO-PROTECTANT.

Crystal Properties
Matthews coefficient	Solvent content
3.1	60.26

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.537	α = 90
b = 103.062	β = 103.64
c = 100.602	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	RIGAKU SATURN 92		2005-11-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-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	1.971	48.882	93.5	0.061				107921

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	1.97	48.88	1.36	107921	10413	93.5	0.17	0.167	0.195	0.1943	39.15

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	15.088
f_angle_d	0.845
f_chiral_restr	0.06
f_bond_d	0.007
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8777
Nucleic Acid Atoms
Solvent Atoms	639
Heterogen Atoms	99

Software

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