6ER6

Crystal structure of a computationally designed colicin endonuclease and immunity pair colEdes7/Imdes7

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	292	12% PEG 1,500 and 0.05M MMT buffer pH=8.0

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.34	α = 90
b = 56.297	β = 90
c = 101.977	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	AREA DETECTOR	RIGAKU		2016-05-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-003	1.5418

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	1.56	50.99	99.6	0.051	26.8	3.4		32715

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	1.56	1.62	97.84		0.46	6	6

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	3U43	1.6	25.51	29102	1543	99.84	0.1994	0.1972	0.2414	RANDOM	28.368

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]
-1.87			1.14		0.72

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.099
r_dihedral_angle_4_deg	16.956
r_dihedral_angle_3_deg	12.175
r_dihedral_angle_1_deg	6.87
r_angle_other_deg	1.26
r_angle_refined_deg	1.2
r_rigid_bond_restr	0.894
r_chiral_restr	0.055
r_bond_refined_d	0.004
r_gen_planes_refined	0.004

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.099
r_dihedral_angle_4_deg	16.956
r_dihedral_angle_3_deg	12.175
r_dihedral_angle_1_deg	6.87
r_angle_other_deg	1.26
r_angle_refined_deg	1.2
r_rigid_bond_restr	0.894
r_chiral_restr	0.055
r_bond_refined_d	0.004
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1706
Nucleic Acid Atoms
Solvent Atoms	178
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALA	data scaling
PHASER	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 R01GM133198.