7Z09

Crystal structure of the ground state of bacteriorhodopsin at 1.05 Angstrom resolution

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ESRF BEAMLINE ID14-1
Synchrotron site	ESRF
Beamline	ID14-1
Temperature [K]	100
Detector technology	CCD
Collection date	2002-04-22
Detector	ADSC QUANTUM 4
Wavelength(s)	0.934
Spacegroup name	P 63
Unit cell lengths	60.730, 60.730, 110.270
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	30.130 - 1.050
R-factor	0.1748
Rwork	0.167
R-free	0.18920
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1c3w
Data reduction software	XDS
Data scaling software	XSCALE
Phasing software	MOLREP
Refinement software	PHENIX (1.19.2_4158)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	30.130	30.130	1.080
High resolution limit [Å]	1.050	4.700	1.050
Rmerge	0.087	0.033	2.915
Rmeas	0.094	0.036	3.386
Total number of observations	665238
Number of reflections	106346	1153	7436
<I/σ(I)>	9.36	22.32	0.56
Completeness [%]	99.4	93.8	94.8
Redundancy	6.255	5.824	3.701
CC(1/2)	0.999	0.998	0.180

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	LIPIDIC CUBIC PHASE	5.6	293	Na2HPO4 (5%) and KH2PO4 (95%)