2HA4

Crystal structure of mutant S203A of mouse acetylcholinesterase complexed with acetylcholine

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1J06

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
4.25	71.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.671	α = 90
b = 111.73	β = 90
c = 228.159	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		2004-06-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.933	ESRF	ID14-2

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	2.56	30	99.9	0.062	13	3.7		65686			35.1

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	2.56	2.65	99.9		0.383	3.4	3.1

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	2.56	30	65114	1349	99.94	0.1898	0.18907	0.22401	RANDOM	37.264

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]
2.12			2.42		-4.55

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.413
r_dihedral_angle_4_deg	18.593
r_dihedral_angle_3_deg	15.392
r_dihedral_angle_1_deg	6.109
r_scangle_it	2.528
r_scbond_it	1.536
r_angle_refined_deg	1.301
r_mcangle_it	1.022
r_mcbond_it	0.595
r_nbtor_refined	0.306
r_nbd_refined	0.199
r_symmetry_vdw_refined	0.145
r_xyhbond_nbd_refined	0.131
r_symmetry_hbond_refined	0.127
r_chiral_restr	0.091
r_bond_refined_d	0.011
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
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	8364
Nucleic Acid Atoms
Solvent Atoms	421
Heterogen Atoms	67

Software

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