4IXK

Anaerobic crystal structure of iron soaked (2 h) ferritin from Pseudo-nitzschia multiseries

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5		pH 5.5, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.92	57.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 174.323	α = 90
b = 174.323	β = 90
c = 174.323	γ = 90

Symmetry
Space Group	P 2 3

Diffraction

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

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	1	SSRL	BL7-1

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	2.1	50	100	0.084	11.5	14.6		102638

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	2.1	2.14	100		0.597		14.6	5059

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	2.1	48.4	102117	5096	99.52	0.203	0.2006	0.2474	RANDOM	32.8978

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.284
r_dihedral_angle_4_deg	17.632
r_dihedral_angle_3_deg	15.628
r_dihedral_angle_1_deg	5.166
r_scbond_it	4.742
r_mcangle_it	3.718
r_mcbond_it	2.922
r_angle_refined_deg	1.885
r_chiral_restr	0.133
r_bond_refined_d	0.019

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.284
r_dihedral_angle_4_deg	17.632
r_dihedral_angle_3_deg	15.628
r_dihedral_angle_1_deg	5.166
r_scbond_it	4.742
r_mcangle_it	3.718
r_mcbond_it	2.922
r_angle_refined_deg	1.885
r_chiral_restr	0.133
r_bond_refined_d	0.019
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9938
Nucleic Acid Atoms
Solvent Atoms	524
Heterogen Atoms	8

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

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.