2I36

Crystal structure of trigonal crystal form of ground-state rhodopsin

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL11-1
Synchrotron site	SSRL
Beamline	BL11-1
Temperature [K]	77
Detector technology	CCD
Collection date	2004-04-04
Detector	ADSC QUANTUM 315
Wavelength(s)	0.97970
Spacegroup name	P 31 1 2
Unit cell lengths	159.866, 159.866, 142.150
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	30.000 - 4.100
R-factor	0.38367
Rwork	0.382
R-free	0.41153
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1hzx
RMSD bond length	0.011
RMSD bond angle	1.327
Data reduction software	HKL-2000
Data scaling software	HKL-2000
Phasing software	MOLREP
Refinement software	REFMAC (5.2.0005)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	4.150
High resolution limit [Å]	4.000	4.000
Rmerge	0.087
Number of reflections	17705
<I/σ(I)>	21.1
Completeness [%]	99.7	100
Redundancy	10.6

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION	6.3	278	80 mM MES, pH 6.3, 110 mM N-nonyl-beta-D-glucoside, 200 mM zinc acetate, 0.1% sodium azide, 16 mM beta-mercaptoethanol, 2.6% Merpol HCS, equilibrated against 3.1-3.3 M ammonium sulfate, VAPOR DIFFUSION, temperature 278K