1FE1

CRYSTAL STRUCTURE PHOTOSYSTEM II

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH METHOD	7	293	POLYETHYLENGLYCOL 2000, HEPES-BUFFER, CACL2 , pH 7.00, BATCH METHOD, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 130.01	α = 90
b = 226.72	β = 90
c = 308.29	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARRESEARCH		1999-01-01	M	SINGLE WAVELENGTH
2	1	100	CCD	MARRESEARCH		1999-01-01
3	1	100	IMAGE PLATE	MARRESEARCH		1999-01-01
4	1	100	CCD	MARRESEARCH		2000-01-01

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11		EMBL/DESY, Hamburg	X11
2	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7B		EMBL/DESY, Hamburg	BW7B
3	SYNCHROTRON	ELETTRA BEAMLINE 5.2R		ELETTRA	5.2R
4	SYNCHROTRON	ESRF BEAMLINE ID2		ESRF	ID2

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	3.8	20	95.4	0.068	17.1	3.2	84964	84964			102

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.8	3.91	84.5		0.418		2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MIRAS	3.8	20

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2476
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	1852

Software

Software
Software Name	Purpose
MLPHARE	phasing
DM	model building
DENZO	data reduction
SCALEPACK	data scaling
DM	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.