1UV6

X-ray structure of acetylcholine binding protein (AChBP) in complex with carbamylcholine

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1I9B	PDB ENTRY 1I9B

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8		CAPS PH 10.5, AMMONIUM SULFATE

Crystal Properties
Matthews coefficient	Solvent content
2.4	44.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 140.9	α = 90
b = 140.9	β = 90
c = 240.412	γ = 90

Symmetry
Space Group	P 43 21 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	CCD	ADSC CCD		2003-05-15	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	2.5	50	96	0.123	13	12.8		80976		2.8

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	2.59	98		0.675	2.8	5.3

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1I9B	2.5	12	76092	4015	96.3	0.227	0.265	RANDOM	17.76

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]
0.46			0.46		-0.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.874
r_scangle_it	2.823
r_scbond_it	1.616
r_angle_refined_deg	1.46
r_mcangle_it	1.19
r_angle_other_deg	1.011
r_mcbond_it	0.618
r_symmetry_vdw_refined	0.36
r_symmetry_vdw_other	0.254
r_nbd_other	0.253
r_symmetry_hbond_refined	0.227
r_nbd_refined	0.193
r_xyhbond_nbd_refined	0.155
r_nbtor_other	0.085
r_chiral_restr	0.081
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_gen_planes_other	0.004
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16360
Nucleic Acid Atoms
Solvent Atoms	98
Heterogen Atoms	30

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALEPACK	data scaling
AMoRE	phasing