9R51 | pdb_00009r51

Dimeric state of the F420-reducing hydrogenase from Methanothermococcus thermolithotrophicus in crystalline form 1


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4OMF 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.5293.15The enzyme used for crystallization was at a concentration of 16 mg/ml in 25 mM Tris/HCl pH 7.6, 10 % (v/v) glycerol, 2 mM FAD and 2 mM dithiothreitol. Crystals were obtained anaerobically in a Coy tent filled with a N2/H2 (97:3%) atmosphere by initial screening at 20 degrees Celsius using the sitting drop method on 96-well MCR two-drop crystallization plates in polystyrene (SWISSCI). The reservoir contained 90 ul of crystallization solution. The crystallization solution contained 45 % (w/v) Pentaerythritol ethoxylate (3/4 EO/OH) 270, 100 mM HEPES pH 7.5, and 200 mM (NH4)2SO4. Drops of 0.7 ul protein and 0.7 ul crystallization solution were spotted.
Crystal Properties
Matthews coefficientSolvent content
5.1476.1

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 192.71α = 90
b = 192.71β = 90
c = 386.212γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2016-09-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE BM30A1.3871ESRFBM30A

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
12.348.8699.80.0910.10.0420.99813.65.736526644.66
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)
12.32.4299.10.5970.6730.3040.5652.84.7

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)R-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.331.551.353650251842699.820.18120.17980.17940.20740.2068RANDOM54.94
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_d16.379
f_angle_d1.005
f_chiral_restr0.066
f_bond_d0.007
f_plane_restr0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms28188
Nucleic Acid Atoms
Solvent Atoms1888
Heterogen Atoms735

Software

Software
Software NamePurpose
PHENIXrefinement
BUSTERrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
SCALAdata scaling
PHASERphasing