2HA2

Crystal structure of mouse acetylcholinesterase complexed with succinylcholine

X-RAY DIFFRACTION

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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
4.15	70.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.935	α = 90
b = 110.487	β = 90
c = 227.809	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	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	2.05	30	96.2	0.061	10.6	2.9		112415			35.3

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	2.05	2.15	55.1		0.385	1.4	1.7

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	2.05	30	110041	2255	89.87	0.19227	0.19168	0.22158	RANDOM	46.049

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]
2.25			4.21		-6.46

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.057
r_dihedral_angle_4_deg	17.908
r_dihedral_angle_3_deg	14.555
r_dihedral_angle_1_deg	6.508
r_scangle_it	2.531
r_scbond_it	1.646
r_angle_refined_deg	1.41
r_mcangle_it	1.082
r_angle_other_deg	1.045
r_mcbond_it	0.734
r_symmetry_vdw_other	0.3
r_nbd_refined	0.205
r_nbd_other	0.201
r_symmetry_vdw_refined	0.2
r_nbtor_refined	0.181
r_symmetry_hbond_refined	0.171
r_xyhbond_nbd_refined	0.164
r_mcbond_other	0.143
r_chiral_restr	0.112
r_nbtor_other	0.09
r_xyhbond_nbd_other	0.021
r_bond_refined_d	0.012
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001
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	8350
Nucleic Acid Atoms
Solvent Atoms	764
Heterogen Atoms	151

Software

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