3QI1 | pdb_00003qi1

Design and synthesis of hydroxyethylamine (hea) BACE-1 inhibitors: prime side chromane-containing inhibitors

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6	295	BACE PROTEIN AT 10MG/ML IN 100MM SODIUM BORATE BUFFER PH 8.5. 1MM COMPOUND ADDED TO PROTEIN AND INCUBATED AT 4 C FOR 3 HOURS. HANGING DROP PLATES SET UP WITH RESERVOIR SOLUTION CONTAINING 4% PEG 8000, 100MM SODIUM ACETATE PH 4.6 THE DROPS WERE MIXED WITH 1:1 (V/V) RATIO OF PROTEIN/COMPOUND TO RESERVOIR AND INCUBATED AT ROOM TEMPERATURE FOR 2 WEEKS. VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 295K

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72.174	α = 90
b = 75.506	β = 90
c = 80.236	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS HTC	MIRRORS	2010-07-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007

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	2.3	25.69	96.2	0.086	9.2	3.89		19292		1

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	2.3	2.38	99.8		0.406	2.3	3.86

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.3	25.69	18250	986	95.8	0.20191	0.19837	0.1934	0.26878	0.2625	RANDOM	29.646

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]
0.9			-0.8		-0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.24
r_dihedral_angle_4_deg	18.997
r_dihedral_angle_3_deg	17.869
r_dihedral_angle_1_deg	7.671
r_scangle_it	4.299
r_scbond_it	2.756
r_mcangle_it	2.025
r_angle_refined_deg	1.867
r_mcbond_it	1.098
r_chiral_restr	0.126
r_bond_refined_d	0.022
r_gen_planes_refined	0.01
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2986
Nucleic Acid Atoms
Solvent Atoms	214
Heterogen Atoms	36

Software

Software
Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
CrystalClear	data reduction
CrystalClear	data scaling