5NUU

Torpedo californica acetylcholinesterase in complex with a chlorotacrine-tryptophan hybrid inhibitor

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5E4T

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277.15	MES 100 mM, pH 6.2 PEG200 30%

Crystal Properties
Matthews coefficient	Solvent content
4.05	69.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 111.87	α = 90
b = 111.87	β = 90
c = 137.591	γ = 120

Symmetry
Space Group	P 31 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 2M		2016-01-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R	1	ELETTRA	5.2R

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	2.5	48.49	100	0.224	7.6	10		35012

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	2.5	2.6	100		2.572		9.8

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	5E4T	2.5	48.49	33080	1654	99.6	0.191	0.188	0.246	RANDOM	51.32

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]
1.05	1.05		1.05		-3.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.103
r_dihedral_angle_3_deg	15.913
r_dihedral_angle_4_deg	15.559
r_long_range_B_refined	9.614
r_long_range_B_other	9.512
r_scangle_other	8.247
r_dihedral_angle_1_deg	7.125
r_mcangle_other	5.909
r_mcangle_it	5.908
r_scbond_it	5.472
r_scbond_other	5.472
r_mcbond_it	4.059
r_mcbond_other	4.055
r_angle_refined_deg	1.901
r_angle_other_deg	0.963
r_chiral_restr	0.108
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.003
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4210
Nucleic Acid Atoms
Solvent Atoms	185
Heterogen Atoms	161

Software

Software
Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
Aimless	data scaling
PHASER	phasing