3KA3

Frog M-ferritin with magnesium

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9	277	2M MgCl2, 0.1M Bicine pH 9.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.14	60.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 183.886	α = 90
b = 183.886	β = 90
c = 183.886	γ = 90

Symmetry
Space Group	F 4 3 2

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	ADSC QUANTUM 315r	Mirror 1: plane parabola Pt and Rh-coated Invar steel. Mirror 2: torroid Pt and Rh-coated Si		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.1159	ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.4	50	100	0.088	0.088	21.2	13.6		52741

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.4	1.48	100		0.969	0.969	0.8	13.7	7566

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	1.4	50	52741	2689	99.99	0.137	0.136	0.159	RANDOM	16.983

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	38.192
r_dihedral_angle_4_deg	15.94
r_sphericity_free	15.282
r_dihedral_angle_3_deg	14.292
r_scangle_it	7.613
r_scbond_it	5.375
r_dihedral_angle_1_deg	4.754
r_sphericity_bonded	4.74
r_mcangle_it	3.026
r_rigid_bond_restr	2.7
r_mcbond_it	2.243
r_angle_refined_deg	2.141
r_angle_other_deg	1.724
r_mcbond_other	0.964
r_chiral_restr	0.137
r_bond_refined_d	0.028
r_gen_planes_refined	0.013
r_gen_planes_other	0.003
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1429
Nucleic Acid Atoms
Solvent Atoms	292
Heterogen Atoms	17

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
PHASER	phasing