2SKD

PYRIDOXAL PHOSPHORYLASE B IN COMPLEX WITH PHOSPHATE, GLUCOSE AND INOSINE-5'-MONOPHOSPHATE


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2PRJPDB ENTRY 2PRJ

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16.7289T-STATE PYRIDOXAL PHOSPHORYLASE B, FROM RABBIT MUSCLE, WAS CO-CRYSTALLIZED WITH 8-10 MM FLUOROPHOSPHATE IN A MEDIUM CONSISTING OF 15-25 MG/ML ENZYME, 2 MM IMP, 2 MM SPERMINE, 50 MM GLUCOSE, 10 MM BES, 0.1 MM EDTA, AND 0.02% SODIUM AZIDE, PH 6.7 (16 DEGREE C). JUST BEFORE DATA COLLECTION, THE CRYSTALS WERE TRANSFERRED TO A FRESH BUFFER SOLUTION, CONTAINING THE SAME CONSTITUENTS AS THEIR MOTHER LIQUOR WITH THE EXCEPTION OF THE PROTEIN., temperature 289K
Crystal Properties
Matthews coefficientSolvent content
2.4748

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 128.5α = 90
b = 128.5β = 90
c = 116.3γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293FILM1993-10-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX7.2SRSPX7.2

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
12.425.7378.110.0643.323004130041
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.42.5120.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)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 2PRJ2.425.73300413004178.110.1670.1670.219RANDOM
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]
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d25.5
x_angle_deg1.4
x_improper_angle_d0.72
x_bond_d0.008
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d25.5
x_angle_deg1.4
x_improper_angle_d0.72
x_bond_d0.008
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6749
Nucleic Acid Atoms
Solvent Atoms272
Heterogen Atoms51

Software

Software
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
MOSCOdata reduction
CCP4data scaling
X-PLORphasing