5C6F

Crystal structures of ferritin mutants reveal side-on binding to diiron and end-on cleavage of oxygen

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		298.15	0.4 M NaH2PO4/1.4 M K2HPO4, 0.1 M Imidazole pH 7.5, 0.2 M NaCl

Crystal Properties
Matthews coefficient	Solvent content
2.83	56.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 128.051	α = 90
b = 128.051	β = 90
c = 165.103	γ = 90

Symmetry
Space Group	P 4

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	80	CCD	ADSC QUANTUM 315r		2012-02-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-17A	0.98	Photon Factory	BL-17A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2	50	100	5.6	13.1		178771

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2	50	178769	8947	99.98	0.151	0.1487	0.1951	RANDOM	25.8089

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]
0.09			0.09		-0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.515
r_dihedral_angle_4_deg	16.617
r_dihedral_angle_3_deg	14.266
r_dihedral_angle_1_deg	4.816
r_angle_refined_deg	1.693
r_angle_other_deg	0.854
r_chiral_restr	0.107
r_bond_refined_d	0.018
r_gen_planes_refined	0.009
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.515
r_dihedral_angle_4_deg	16.617
r_dihedral_angle_3_deg	14.266
r_dihedral_angle_1_deg	4.816
r_angle_refined_deg	1.693
r_angle_other_deg	0.854
r_chiral_restr	0.107
r_bond_refined_d	0.018
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16848
Nucleic Acid Atoms
Solvent Atoms	2473
Heterogen Atoms	64

Software

Software
Software Name	Purpose
MOLREP	phasing
PDB_EXTRACT	data extraction
REFMAC	refinement
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.