2HA3

Crystal structure of mouse acetylcholinesterase complexed with choline

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277	25-32% PEG550 MME or PEG600, 60-100mM HEPES or Na acetate, pH 6.5-8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
4.22	70.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.387	α = 89.97
b = 111.874	β = 90.02
c = 227.147	γ = 90.04

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	CCD	ADSC QUANTUM 210		2004-03-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.975	ESRF	ID14-4

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	2.25	30	96.2	0.073	11.9	3.9		92590			41.7

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	2.25	2.35	96.2		0.338	3	3.9

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	FOURIER SYNTHESIS	THROUGHOUT	1J06	2.25	30	90675	1845	96.03	0.17588	0.17539	0.1993	RANDOM	42.036

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]
2.06			2.77		-4.83

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.529
r_dihedral_angle_4_deg	17.163
r_dihedral_angle_3_deg	14.98
r_dihedral_angle_1_deg	6.263
r_scangle_it	2.361
r_scbond_it	1.477
r_angle_refined_deg	1.25
r_mcangle_it	1.004
r_angle_other_deg	0.92
r_mcbond_it	0.667
r_symmetry_vdw_other	0.302
r_nbd_refined	0.197
r_nbd_other	0.196
r_nbtor_refined	0.178
r_xyhbond_nbd_refined	0.163
r_symmetry_hbond_refined	0.135
r_symmetry_vdw_refined	0.118
r_mcbond_other	0.114
r_nbtor_other	0.086
r_chiral_restr	0.075
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8362
Nucleic Acid Atoms
Solvent Atoms	742
Heterogen Atoms	99

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling