2C35

Subunits Rpb4 and Rpb7 of human RNA polymerase II


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION7.4291VAPOUR DIFFUSION AT 18C USING EQUAL VOLUMES OF PROTEIN AT 15MG/ML IN 20MM PIPES PH 6.8, 100MM NACL, 15% GLYCEROL, PRECIPITANT CONTAINING 100MM PIPES PH 7.4, 25% PEG (MW4000), 15% GLYCEROL.
Crystal Properties
Matthew coefficientSolvent content
2.5944

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 45.69α = 85.53
b = 83.19β = 81.8
c = 99.31γ = 81.77
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHOSMIC2003-04-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RUH3R

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
12.743.395.30.0714.53.43741638.6
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.72.8593.80.393.43.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)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 1Y142.743.2637414186095.20.230.230.266RANDOM46
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]
19.2514.24-7.84-6.86-7.75-12.39
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.5
c_scangle_it10.98
c_scbond_it8.7
c_mcangle_it2.15
c_angle_deg1.4
c_mcbond_it1.23
c_improper_angle_d0.86
c_bond_d0.008
c_angle_deg_prot
c_bond_d_na
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.5
c_scangle_it10.98
c_scbond_it8.7
c_mcangle_it2.15
c_angle_deg1.4
c_mcbond_it1.23
c_improper_angle_d0.86
c_bond_d0.008
c_angle_deg_prot
c_bond_d_na
c_angle_d
c_dihedral_angle_d_prot
c_angle_d_na
c_improper_angle_d_na
c_improper_angle_d_prot
c_angle_d_prot
c_bond_d_prot
c_angle_deg_na
c_dihedral_angle_d_na
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms9236
Nucleic Acid Atoms
Solvent Atoms54
Heterogen Atoms

Software

Software
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing