3OBA

Structure of the beta-galactosidase from Kluyveromyces lactis


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.529124 % Polyethylen Glycol (PEG) 3350, 0.1 M BisTris pH 7.5, 0.2 M Sodium Tartrate, VAPOR DIFFUSION, SITTING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
2.4549.7

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 140.03α = 90
b = 153.34β = 90
c = 216.16γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2008-12-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID23-10.979ESRFID23-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym 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
12.75125.0671000.1720.17210.77.212127212127245.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.752.91000.5360.5361.47.117499

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 1YQ22.7562.57121060609299.880.20850.20670.2435RANDOM19.5681
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]
0.17-0.17
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.907
r_dihedral_angle_4_deg19.408
r_dihedral_angle_3_deg15.286
r_dihedral_angle_1_deg6.356
r_scangle_it1.862
r_angle_refined_deg1.108
r_scbond_it1.024
r_mcangle_it0.816
r_mcbond_it0.412
r_chiral_restr0.081
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.907
r_dihedral_angle_4_deg19.408
r_dihedral_angle_3_deg15.286
r_dihedral_angle_1_deg6.356
r_scangle_it1.862
r_angle_refined_deg1.108
r_scbond_it1.024
r_mcangle_it0.816
r_mcbond_it0.412
r_chiral_restr0.081
r_bond_refined_d0.008
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms33300
Nucleic Acid Atoms
Solvent Atoms1666
Heterogen Atoms64

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
ADSCdata collection