5ZZN

Crystal structure of photosystem II from an SQDG-deficient mutant of Thermosynechococcus elongatus

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	6	285	5% PEG 1450, 20MM NACL, 10MM CACL2, 40MM MGSO4, 20MM MES BUFFER, PH 6.0, MICRO-BATCH METHOD UNDER OIL, TEMPERATURE 285K

Crystal Properties
Matthews coefficient	Solvent content
3.2	61.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.25	α = 90
b = 228.43	β = 90
c = 287.12	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	PIXEL	DECTRIS PILATUS3 6M		2016-04-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	1.0	SPring-8	BL41XU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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	2.1	19.99	99.5	0.087	0.998	13.7	6.8		459862

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.1	2.22	98.5		0.886	0.87	2.1	6.7

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3WU2	2.1	19.99	438502	23043	99.31	0.1562	0.1541	0.1966	RANDOM	47.34

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]
0.01			-0.02		0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.053
r_dihedral_angle_4_deg	17.601
r_dihedral_angle_3_deg	13.574
r_dihedral_angle_1_deg	6.115
r_angle_refined_deg	2.582
r_angle_other_deg	1.315
r_chiral_restr	0.12
r_bond_refined_d	0.021
r_gen_planes_refined	0.013
r_gen_planes_other	0.009

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.053
r_dihedral_angle_4_deg	17.601
r_dihedral_angle_3_deg	13.574
r_dihedral_angle_1_deg	6.115
r_angle_refined_deg	2.582
r_angle_other_deg	1.315
r_chiral_restr	0.12
r_bond_refined_d	0.021
r_gen_planes_refined	0.013
r_gen_planes_other	0.009
r_bond_other_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	40940
Nucleic Acid Atoms
Solvent Atoms	2356
Heterogen Atoms	10055

Software

Software
Software Name	Purpose
REFMAC	refinement
Coot	model building
PDB_EXTRACT	data extraction
MOLREP	phasing
XDS	data reduction

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 R01GM133198.