9QQH | pdb_00009qqh

Mini-bacterioferritin from Candidatus Methanoperedens species BLZ2 oxidized then chemically reduced


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 9QQ4 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8293.15Crystals were obtained on a Junior Clover plate (Jena Bioscience, Germany) using 100 uL crystallisation solution under an anaerobic atmosphere of 97:3% N2:H2. The crystallization reservoir contained 20% w/v Polyethylene glycol 3,350 and 200 mM tri-Potassium citrate. 1 ul of purified protein solution at 22 mg/mL in 25 mM Tris/HCl, 10% v/v glycerol and 2 mM dithiothreitol was mixed with 1 ul of the crystallization solution. The crystal was exposed to air for 10 min, then soaked in the crystallization solution supplemented with 100 mM of freshly prepared sodium dithionite. Finally the crystal was soaked in the crystallization solution supplemented with 20% v/v glycerol and 90 mM sodium dithionite prior freezing.
Crystal Properties
Matthews coefficientSolvent content
2.4650.08

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 122.897α = 90
b = 122.897β = 90
c = 122.897γ = 90
Symmetry
Space GroupP 21 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2024-02-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE BM070.97930ESRFBM07

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.07886.90199.70.1740.1860.0640.9947.17.737379
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.0782.11498.11.2951.6010.9250.3740.72.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE2.0886.91.3336283178196.750.19710.19550.19580.22950.228730.37
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
KeyRefinement Restraint Deviation
f_dihedral_angle_d15.989
f_angle_d0.822
f_chiral_restr0.048
f_plane_restr0.008
f_bond_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4415
Nucleic Acid Atoms
Solvent Atoms540
Heterogen Atoms107

Software

Software
Software NamePurpose
PHENIXrefinement
autoPROCdata reduction
autoPROCdata scaling
PHASERphasing