2X5U | pdb_00002x5u

80 microsecond Laue diffraction snapshot from crystals of a photosynthetic reaction centre without illumination.

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2WJN	PDB ENTRY 2WJN

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.1		MONOOLEIN WAS MIXED WITH 0.1M HEPES PH 8.1, 0.1% LDAO IN 60:40 (W/W) RATIO. THEN THE CUBIC PHASE WAS MIXED WITH 16% JEFFAMINE M600, 1M HEPES PH 8.1, 0.7M AMMONIUM SULFATE, 2.5% 1,2,3-HEPTANETRIOL IN 1 TO 4 RATIO AND EQUILIBRATED UNTIL PHASE SEPARATION OCCURED. THE UPPER LIPIDIC-SPONGE PHASE WAS HARVESTED AND 1UL WAS USED AS A PRECIPITANT SOLUTION TOGETHER WITH 1UL OF 25 MG/ML PROTEIN SOLUTION IN A HANGING-DROP, VAPOUR-DIFFUSION EXPERIMENT.

Crystal Properties
Matthews coefficient	Solvent content
2.67	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.693	α = 90
b = 143.47	β = 90
c = 177.998	γ = 90

Symmetry
Space Group	P 21 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	293	CCD	MARRESEARCH		2007-09-12	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID09	0.8-1.1	ESRF	ID09

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	3	61.8	91.3	0.15	12.9	7.7		40855		2	35.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3	3.14	75.9		8.6	7.7

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-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2WJN	3	48.78	38773	2077	91.31	0.25167	0.24995	0.25	0.28434	0.28	RANDOM	25.866

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]
0.08			3.29		-3.37

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.676
r_dihedral_angle_3_deg	14.082
r_dihedral_angle_4_deg	12.734
r_dihedral_angle_1_deg	4.774
r_angle_refined_deg	1.75
r_scangle_it	0.788
r_scbond_it	0.459
r_mcangle_it	0.424
r_mcbond_it	0.227
r_chiral_restr	0.068
r_bond_refined_d	0.011
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
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	9234
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	610

Software

Software
Software Name	Purpose
REFMAC	refinement
Precognition	data reduction
Epinorm	data scaling
PHASER	phasing