4PAX

THE CATALYTIC FRAGMENT OF POLY(ADP-RIBOSE) POLYMERASE COMPLEXED WITH 8-HYDROXY-2-METHYL-3-HYDRO-QUINAZOLIN-4-ONE


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1PAXPDB ENTRY 1PAX

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
18.5PROTEIN WAS CRYSTALLIZED FROM 12% PEG 600, 6% ISOPROPANOL, 100 MM TRIS, PH 8.5, 10 MM NU1025
Crystal Properties
Matthews coefficientSolvent content
2.347

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 59.16α = 90
b = 64.55β = 90
c = 96.31γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293IMAGE PLATEMAR scanner 180 mm plate1996-11-25M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE X31EMBL/DESY, HAMBURGX31

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
12.815.11000.0750.07510.54.4929639
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)
2.82.891000.2680.2687.74.4

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONDIFFERENCE FOURIERPDB ENTRY 1PAX2.815.192961000.1670.16731.4
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_d23.6
x_scangle_it6.8
x_scbond_it4.4
x_mcangle_it3.7
x_mcbond_it2.3
x_angle_deg1.5
x_improper_angle_d1.3
x_bond_d0.01
x_bond_d_na
x_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d23.6
x_scangle_it6.8
x_scbond_it4.4
x_mcangle_it3.7
x_mcbond_it2.3
x_angle_deg1.5
x_improper_angle_d1.3
x_bond_d0.01
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
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2763
Nucleic Acid Atoms
Solvent Atoms54
Heterogen Atoms11

Software

Software
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing