1OOW

The crystal structure of the spinach plastocyanin double mutant G8D/L12E gives insight into its low reactivity towards photosystem 1 and cytochrome f

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	MAX II BEAMLINE I711
Synchrotron site	MAX II
Beamline	I711
Temperature [K]	100
Detector technology	CCD
Collection date	2001-05-13
Detector	MARRESEARCH
Wavelength(s)	0.991
Spacegroup name	P 31 2 1
Unit cell lengths	74.761, 74.761, 31.383
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	19.300 * - 2.000
R-factor	0.1881
Rwork	0.183
R-free	0.23000 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1ag6
RMSD bond length	0.019
RMSD bond angle	1.700 *
Data reduction software	XDS
Data scaling software	XSCALE
Refinement software	REFMAC (5.1.24)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	19.300 *	2.100
High resolution limit [Å]	2.000	2.000
Rmerge	0.082 *	0.298
Total number of observations	75874 *
Number of reflections	6400
<I/σ(I)>	21.88	7.06
Completeness [%]	98.6 *	91.6
Redundancy	10.8	7.6

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	4.5	300	32% PEG 3350, 0.25M MgCl2, 0.1M Na-ascorbate, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 300K

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	1.5-1.8 (mM)
2	1	reservoir	sodium ascorbate	100 (mM)	pH4.5
3	1	reservoir	PEG3350/4000	31-33 (%)
4	1	reservoir		0.2-0.3 (M)