2VJC

Torpedo Californica Acetylcholinesterase In Complex With A Non Hydrolysable Substrate Analogue, 4-Oxo-N,N,N- Trimethylpentanaminium - Orthorhombic space group - Dataset A at 150K

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1W75	PDB ENTRY 1W75

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6	277	32% PEG200, 150MM MES, PH6, 4 DEG. C. 2 HOURS SOAKING IN MOTHER LIQUOR SOLUTION CONTAINING 0.5 MM OTMA, pH 6.0

Crystal Properties
Matthews coefficient	Solvent content
2.62	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.83	α = 90
b = 107.49	β = 90
c = 151.18	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	150	CCD	ADSC CCD		2006-09-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		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	2.2	50	99.5	0.09	14.7	7.2		76218		3.5	20.7

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	2.2	2.3	97		0.33	4.6

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	PDB ENTRY 1W75	2.3	45.92	67072	3354	99.9	0.193	0.193	0.238	RANDOM	34.1

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]
-5.2			15.14		-9.95

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.5
c_scangle_it	2.78
c_scbond_it	2.02
c_mcangle_it	1.94
c_angle_deg	1.3
c_mcbond_it	1.22
c_improper_angle_d	0.85
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8454
Nucleic Acid Atoms
Solvent Atoms	1601
Heterogen Atoms	130

Software

Software
Software Name	Purpose
CNS	refinement
XDS	data reduction
XSCALE	data scaling
CNS	phasing