4ZK1

Crystal Structure of Lymnaea stagnalis Acetylcholine-Binding Protein (LsAChBP) in Complex with 3-Pyrrolylmethylene Anabaseine

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1YI5	PDB entries 1YI5, 1UV6, 1UW6, 1UX2, 2ZJU, 2ZJV
experimental model	PDB	1UV6	PDB entries 1YI5, 1UV6, 1UW6, 1UX2, 2ZJU, 2ZJV
experimental model	PDB	1UW6	PDB entries 1YI5, 1UV6, 1UW6, 1UX2, 2ZJU, 2ZJV
experimental model	PDB	1UX2	PDB entries 1YI5, 1UV6, 1UW6, 1UX2, 2ZJU, 2ZJV
experimental model	PDB	2ZJU	PDB entries 1YI5, 1UV6, 1UW6, 1UX2, 2ZJU, 2ZJV
experimental model	PDB	2ZJV	PDB entries 1YI5, 1UV6, 1UW6, 1UX2, 2ZJU, 2ZJV

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	0.26 M ammonium phosphate, 35% glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.55	51.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.045	α = 90
b = 127.998	β = 110.22
c = 122.6	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	80	CCD	ADSC QUANTUM 315r		2011-12-20	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)	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	1.75	50	99.8	0.065	0.065	47.9	7.4		250015		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.78	96.2		0.389	0.389	3.921	5.5

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	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB entries 1YI5, 1UV6, 1UW6, 1UX2, 2ZJU, 2ZJV	1.75	42.604	1.34	249241	1997	99.65	0.192	0.1918	0.2165	24.0972

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	12.404
f_angle_d	1.295
f_chiral_restr	0.042
f_bond_d	0.006
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16401
Nucleic Acid Atoms
Solvent Atoms	804
Heterogen Atoms	380

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.