1XLV

Ethylphosphorylated Butyrylcholinesterase (Aged) Obtained By Reaction With Echothiophate

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	AMMONIUM SULFATE, 2-(N-MORPHOLINO)-ETHANESULFONIC ACID, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.9	57.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 154.587	α = 90
b = 154.587	β = 90
c = 126.706	γ = 90

Symmetry
Space Group	I 4 2 2

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 IV		2003-12-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

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	2.247	50	86.1	0.051	32.2	7.8		31580

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.247	2.33	91.1		0.439	3.3	6.3

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	1POI	2.247	40	27281	1447	78.25	0.18618	0.18299	0.24662	RANDOM	48.278

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]
-1.8			-1.8		3.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.357
r_dihedral_angle_3_deg	17.789
r_dihedral_angle_4_deg	16.537
r_dihedral_angle_1_deg	6.815
r_scangle_it	3.699
r_scbond_it	2.648
r_angle_refined_deg	1.744
r_mcangle_it	1.659
r_mcbond_it	1.158
r_nbtor_refined	0.317
r_symmetry_vdw_refined	0.23
r_nbd_refined	0.226
r_symmetry_hbond_refined	0.203
r_xyhbond_nbd_refined	0.168
r_chiral_restr	0.115
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
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_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4180
Nucleic Acid Atoms
Solvent Atoms	220
Heterogen Atoms	170

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement