4BT4

acetolactate decarboxylase with a bound (2S,3S)-2,3-Dihydroxy-2- methylbutanoic acid


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4BT2PDB ENTRY 4BT2

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
18.50.2 M TRIMETHYLAMINE N-OXIDE (TMAO), 0.1 M TRIS PH 8.5, 28-33% PEG 2K MME
Crystal Properties
Matthews coefficientSolvent content
2.244

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 46.83α = 90
b = 46.83β = 90
c = 198.28γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMAR scanner 345 mm plateMIRRORS2011-06-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SEALED TUBEXenocs GeniX 3D Cu HF

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
11.64199.30.1919.520.134150-36
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)
11.61.6997.40.844.618.7

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 4BT21.640.732787136398.930.180950.179720.21028RANDOM10.393
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]
-0.25-0.12-0.250.37
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.142
r_dihedral_angle_4_deg13.115
r_dihedral_angle_3_deg12.693
r_dihedral_angle_1_deg6.185
r_scangle_it3.558
r_scbond_it2.113
r_angle_refined_deg1.529
r_mcangle_it0.907
r_mcbond_it0.381
r_chiral_restr0.107
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.142
r_dihedral_angle_4_deg13.115
r_dihedral_angle_3_deg12.693
r_dihedral_angle_1_deg6.185
r_scangle_it3.558
r_scbond_it2.113
r_angle_refined_deg1.529
r_mcangle_it0.907
r_mcbond_it0.381
r_chiral_restr0.107
r_bond_refined_d0.016
r_bond_other_d
r_angle_other_deg
r_gen_planes_refined
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_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 Atoms1879
Nucleic Acid Atoms
Solvent Atoms340
Heterogen Atoms10

Software

Software
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling