1MVS

Analysis of Two Polymorphic Forms of a Pyrido[2,3-d]pyrimidine N9-C10 Reverse-Bridge Antifolate Binary Complex with Human Dihydrofolate Reductase


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1HFRPDB entry 1HFR

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.82980.1M phosphate buffer, 61% Ammonium sulfate, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.5451.56

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 85.486α = 90
b = 85.486β = 90
c = 77.612γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298IMAGE PLATERIGAKU RAXIS IImirrors1994-12-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU2001.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.9890.696892225.67
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.9261.2

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-Factor (All)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB entry 1HFR1.982968996090.60.2120.1869.5
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_mcangle_it0.065
p_angle_d0.061
p_bond_d0.024
p_mcbond_it0.019
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1502
Nucleic Acid Atoms
Solvent Atoms69
Heterogen Atoms37

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PROTEINmodel building
PROLSQrefinement
PROTEINphasing