2RJH

Crystal structure of biosynthetic alaine racemase in D-cycloserine-bound form from Escherichia coli


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1RCQPDB ENTRY 1RCQ

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP72770.1M HEPES, 1.6M ammonium sulfate, pH7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
3.1160.48

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 147.713α = 90
b = 147.713β = 90
c = 163.724γ = 120
Symmetry
Space GroupP 6

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IV++2006-11-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5418

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
12.4164.39999.90.1210.12169.778993
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)
2.42.5399.70.3950.3951.97.711495

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 1RCQ2.4153178640760599.90.1990.22820.374
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]
-2.246-3.529-2.2464.492
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it2.574
c_mcangle_it1.819
c_scbond_it1.742
c_mcbond_it1.108
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms10949
Nucleic Acid Atoms
Solvent Atoms566
Heterogen Atoms118

Software

Software
Software NamePurpose
SCALAdata processing
CNSrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection
MOSFLMdata reduction
SCALAdata scaling