Experiment: 4ZR6

Lymnaea Stagnalis Acetylcholine Binding Protein in Complex with 3-[(4E)-4-[(3-methylimidazol-4-yl)methylene]-2,3-dihydropyrrol-5-yl]pyridine

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4ZJT	PDB entries 4ZJT & 4ZK1
experimental model	PDB	4ZK1	PDB entries 4ZJT & 4ZK1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	291.15	0.02 M calcium chloride dihydrate, 0.1 M sodium acetate trihydrate, pH 4.6, 30% v/v MPD

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.924	α = 90
b = 78.1	β = 102.32
c = 120.502	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	88	CCD	ADSC QUANTUM 315r		2014-12-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.0	ALS	8.2.1

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	2.511	47.007	100	0.172	25.2	5.2	41678	41678

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.5	2.54			0.368	0.819

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB entries 4ZJT & 4ZK1	2.6	44.259	1.35	38636	1854	99.89	0.2128	0.2101	0.266	0.2603	46.5787

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.667
f_angle_d	1.23
f_chiral_restr	0.045
f_bond_d	0.01
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7196
Nucleic Acid Atoms
Solvent Atoms	7
Heterogen Atoms	160

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing