4UOV

The structure of a tetrameric alpha-carbonic anhydrase from Thermovibrio ammonificans reveals a core formed around intermolecular disulfides, which contribute to its thermostability.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4C3TPDB ENTRY 4C3T

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
15.59% ETHYLENE GLYCOL, 9 % PEG8000, 10 MM CARBOXYLIC ACIDS ADDITIVE MIXTURE, 100MM MES PH 6.5.
Crystal Properties
Matthews coefficientSolvent content
3.6666

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 163.75α = 90
b = 283.02β = 90
c = 52.17γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS2012-08-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I04-1DiamondI04-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)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
11.8542.0199.60.113.77.5206954
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.851.999.60.952.47.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 4C3T1.8542.011963891039999.480.173410.171810.20404RANDOM28.828
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]
-0.4-0.81.2
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.485
r_dihedral_angle_4_deg13.471
r_dihedral_angle_3_deg13.177
r_dihedral_angle_1_deg5.742
r_mcangle_it3.877
r_scbond_it3.843
r_mcbond_it3.097
r_angle_refined_deg1.266
r_chiral_restr0.114
r_bond_refined_d0.008
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.485
r_dihedral_angle_4_deg13.471
r_dihedral_angle_3_deg13.177
r_dihedral_angle_1_deg5.742
r_mcangle_it3.877
r_scbond_it3.843
r_mcbond_it3.097
r_angle_refined_deg1.266
r_chiral_restr0.114
r_bond_refined_d0.008
r_gen_planes_refined0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms10878
Nucleic Acid Atoms
Solvent Atoms1918
Heterogen Atoms435

Software

Software
Software NamePurpose
REFMACrefinement
XDSdata reduction
xia2data reduction
Aimlessdata scaling
MOLREPphasing