1UX2

X-ray structure of acetylcholine binding protein (AChBP)

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ESRF BEAMLINE ID14-4
Synchrotron site	ESRF
Beamline	ID14-4
Temperature [K]	100
Detector technology	CCD
Collection date	2002-06-15
Detector	ADSC CCD
Spacegroup name	P 41 21 2
Unit cell lengths	140.639, 140.639, 238.257
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	12.000 - 2.100 *
R-factor	0.23948
Rwork	0.236
R-free	0.28400 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1i9b
RMSD bond length	0.012 *
RMSD bond angle	1.320 *
Data reduction software	MOSFLM
Data scaling software	SCALEPACK
Phasing software	AMoRE
Refinement software	REFMAC

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	2.180
High resolution limit [Å]	2.100	2.100
Rmerge	0.111	0.932
Number of reflections	236373
<I/σ(I)>	10	1.3
Completeness [%]	99.0	99
Redundancy	13.4	4.2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	8		TRIS PH 8.0, AMMONIUM SULFATE

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	reservoir	ammonium sulfate	1.4 (M)
2	1	reservoir	PEG200	1 (%)
3	1	reservoir	HEPES	0.1 (M)	pH7.0
4	1	drop	Tris	0.1 (M)	pH8.0