9TN7 | pdb_00009tn7

F420-nitrite reductase from Methanocaldococcus infernus at 1.58 A resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7NP8 
in silico modelAlphaFold 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.5293.15Prior to crystallisation, fresh sample was centrifuged at 13 000 g for 3 min to remove macro-aggregates and dust. The sample was crystallised in an anaerobic chamber filled with a N2/H2 (97:3%) atmosphere, 20 degrees Celsius. The crystallisation was done in 96-Well MRC 2-Drop polystyrene plates (SWISSCI) containing 90 uL of crystallisation solution in the reservoir. 0.7 uL of enzyme 6.5 mg/ml + 1 mM FAD was mixed with 0.7 uL of the crystallisation solution. The crystallisation solution contained 45 % w/v Pentaerythritol Propoxylate (5/4 PO/OH), 100 mM MES pH 6.5, and 400 mM Potassium chloride. The crystals appeared in 7 to 12 days.
Crystal Properties
Matthews coefficientSolvent content
2.8657.07

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 102.2α = 90
b = 114.11β = 90
c = 136.71γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 16M2024-05-18MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSOLEIL BEAMLINE PROXIMA 11.0332SOLEILPROXIMA 1

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
11.5887.694.80.1240.1290.0350.99811.413.589629
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)
11.581.7152.61.9572.0320.5440.5581.513.8

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-Free (Depositor)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.5842.321.3489621451481.80.13940.1380.167233.15
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_d15.42
f_angle_d1.314
f_chiral_restr0.071
f_plane_restr0.014
f_bond_d0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4894
Nucleic Acid Atoms
Solvent Atoms617
Heterogen Atoms233

Software

Software
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
autoPROCdata reduction
autoPROCdata scaling
PHENIXphasing