8Q67 | pdb_00008q67

Crystal structure of a homohexameric MCM from M. acidophilum


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4R7YPolyalanine model of the C-terminal ATPase domain of chain A. Loops were also removed from the model.

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.52930.03 M NPS, 0.1 M MOPS/HEPES pH 7.5, 10 % (w/v) PEG 20,000, 20 % (v/v) PEG MME 550
Crystal Properties
Matthews coefficientSolvent content
3.2461.98

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 228.699α = 90
b = 127.488β = 91.713
c = 177.038γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER2 XE 16M2020-09-29MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I030.976DiamondI03

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
12.5957.1599.90.1060.1150.0440.99811.36.815708864.47
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.592.6498.20.5

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-VALUE2.5957.151.33154138198398.020.23110.23090.23090.25330.253696.45
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_d17.8752
f_angle_d1.4906
f_chiral_restr0.0976
f_bond_d0.0182
f_plane_restr0.0092
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms26927
Nucleic Acid Atoms
Solvent Atoms13
Heterogen Atoms176

Software

Software
Software NamePurpose
X-Areadata reduction
DIALSdata scaling
PHASERphasing
Cootmodel building
BUCCANEERmodel building
PHENIXmodel building
PHENIXrefinement