5BWB

ACETYLCHOLINESTERASE (E.C. 3.1.1.7) FROM TORPEDO CALIFORNICA IN COMPLEX WITH THE BIS-IMIDAZOLIUM OXIME 2BIM-7

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.7	277	Drop solution contained 36% PEG 200, 0.2 M MES buffer pH 5.7, 20 mM 2BIM-7. Reservoir solution contained 35% PEG 200.

Crystal Properties
Matthews coefficient	Solvent content
4.11	70.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 112.303	α = 90
b = 112.303	β = 90
c = 137.114	γ = 120

Symmetry
Space Group	P 31 2 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	BRUKER SMART 6000		2009-12-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.54

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.57	56.15	100	0.1245	17.18	13.58		32414

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	2.57	2.66	100		0.4065	5.59	13.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	2ACE	2.57	56.15	29650	1580	96.43	0.21032	0.20863	0.24197	RANDOM	33.291

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	0.56		1.11		-3.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.76
r_dihedral_angle_3_deg	14.4
r_dihedral_angle_4_deg	13.094
r_dihedral_angle_1_deg	5.565
r_angle_other_deg	3.692
r_long_range_B_refined	2.971
r_long_range_B_other	2.784
r_angle_refined_deg	2.169
r_scangle_other	1.361
r_mcangle_it	1.188
r_mcangle_other	1.188
r_scbond_it	0.844
r_scbond_other	0.843
r_mcbond_it	0.75
r_mcbond_other	0.748
r_chiral_restr	0.187
r_gen_planes_refined	0.014
r_bond_refined_d	0.009
r_gen_planes_other	0.008
r_bond_other_d
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4245
Nucleic Acid Atoms
Solvent Atoms	207
Heterogen Atoms	63

Software

Software
Software Name	Purpose
REFMAC	refinement
SAINT	data reduction
SADABS	data scaling
AMoRE	phasing