4CD2

LIGAND INDUCED CONFORMATIONAL CHANGES IN THE CRYSTAL STRUCTURES OF PNEUMOCYSTIS CARINII DIHYDROFOLATE REDUCTASE COMPLEXES WITH FOLATE AND NADP+


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16pH 6.0
Crystal Properties
Matthews coefficientSolvent content
1.9748

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 38.048α = 90
b = 61.51β = 90
c = 85.665γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray2931997-08-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU200

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
129997.70.05212.72.6138662

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (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 REPLACEMENT2821183798.30.17623.16
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
p_staggered_tor20.6
p_transverse_tor19.7
p_scangle_it3.289
p_mcangle_it2.991
p_planar_tor2.3
p_scbond_it2.141
p_mcbond_it1.878
p_multtor_nbd0.252
p_xyhbond_nbd0.205
p_singtor_nbd0.201
RMS Deviations
KeyRefinement Restraint Deviation
p_staggered_tor20.6
p_transverse_tor19.7
p_scangle_it3.289
p_mcangle_it2.991
p_planar_tor2.3
p_scbond_it2.141
p_mcbond_it1.878
p_multtor_nbd0.252
p_xyhbond_nbd0.205
p_singtor_nbd0.201
p_chiral_restr0.174
p_planar_d0.05
p_angle_d0.049
p_bond_d0.017
p_plane_restr0.014
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1652
Nucleic Acid Atoms
Solvent Atoms55
Heterogen Atoms32

Software

Software
Software NamePurpose
AMoREphasing
PROLSQrefinement
DENZOdata reduction
SCALEPACKdata scaling