3LRK

Structure of alfa-galactosidase (MEL1) from Saccharomyces cerevisiae


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.5295Deglycosylated sample. 19% PEG3350, 0.1 M BisTris, 0.2 M SCNK, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.6954.27

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 101.243α = 90
b = 101.243β = 90
c = 111.521γ = 90
Symmetry
Space GroupP 4 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152009-02-07MSINGLE 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
11.95111.5211000.0670.0677.610.64291927.8
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)
1.952.061000.4570.4571.7126150

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 1UAS1.95111.524289221631000.2050.2040.234RANDOM28.367
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]
-0.2-0.20.4
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.947
r_dihedral_angle_4_deg15.83
r_dihedral_angle_3_deg14.618
r_dihedral_angle_1_deg5.8
r_scangle_it2.137
r_scbond_it1.542
r_angle_refined_deg1.372
r_mcangle_it0.849
r_mcbond_it0.508
r_nbtor_refined0.306
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.947
r_dihedral_angle_4_deg15.83
r_dihedral_angle_3_deg14.618
r_dihedral_angle_1_deg5.8
r_scangle_it2.137
r_scbond_it1.542
r_angle_refined_deg1.372
r_mcangle_it0.849
r_mcbond_it0.508
r_nbtor_refined0.306
r_nbd_refined0.193
r_symmetry_vdw_refined0.173
r_xyhbond_nbd_refined0.163
r_symmetry_hbond_refined0.136
r_chiral_restr0.083
r_bond_refined_d0.01
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3518
Nucleic Acid Atoms
Solvent Atoms434
Heterogen Atoms145

Software

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