1RA8

DIHYDROFOLATE REDUCTASE COMPLEXED WITH FOLATE AND 2-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1RA2PDB ENTRY 1RA2

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17pH 7.0
Crystal Properties
Matthews coefficientSolvent content
2.3146.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 74.27α = 90
b = 59.86β = 107.38
c = 38.92γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298AREA DETECTORXUONG-HAMLIN MULTIWIRE1993-01-27M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RUH2R

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.8100720.038143.110657
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.842.03580.1492.72.3

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONDIFFERENCE FOURIERPDB ENTRY 1RA21.82010657720.151
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
t_dihedral_angle_d24
t_it6.1
t_angle_deg3.1
t_nbd0.026
t_bond_d0.022
t_trig_c_planes0.021
t_gen_planes0.008
t_incorr_chiral_ct
t_pseud_angle
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1268
Nucleic Acid Atoms
Solvent Atoms144
Heterogen Atoms63

Software

Software
Software NamePurpose
TNTrefinement
UCSDdata reduction
UCSDdata scaling
TNTphasing