1W23

Crystal structure of phosphoserine aminotransferase from Bacillus alcalophilus


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17.527.75% (V/V) PEG 400, 185 MM MAGNESIUM CHLORIDE HEXAHYDRATE, 7.5% (V/V) GLYCEROL AND 92.7 MM HEPES PH 7.5
Crystal Properties
Matthews coefficientSolvent content
2.1943.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 144.467α = 90
b = 84.84β = 90
c = 67.469γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2003-07-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE BW7AEMBL/DESY, HAMBURGBW7A

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
11.082099.80.0532.923.73512283
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)
11.081.111000.372.8

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUEPDB ENTRY 1BJN1.08203509111750599.40.11740.11680.1394RANDOM
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
5947346669
RMS Deviations
KeyRefinement Restraint Deviation
s_approx_iso_adps0.103
s_non_zero_chiral_vol0.096
s_zero_chiral_vol0.085
s_similar_adp_cmpnt0.056
s_anti_bump_dis_restr0.034
s_angle_d0.033
s_from_restr_planes0.0299
s_bond_d0.016
s_rigid_bond_adp_cmpnt0.006
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5618
Nucleic Acid Atoms
Solvent Atoms977
Heterogen Atoms96

Software

Software
Software NamePurpose
SHELXL-97refinement
HKLdata reduction
HKLdata scaling
AMoREphasing