X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6
Temperature 295.0
Details 10-20% PEG 4000, 0.1 M cacodylic acid, 50 mM n-octyl-beta-D-glucoside, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 66.52 α = 90
b = 73.85 β = 90
c = 76.09 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 Mirrors 2004-08-16
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.98 NSLS X4A

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
2.2 40 96.7 0.083 0.055 -- -- -- 19105 -- -- --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.2 2.37 96.2 0.441 0.426 2.0 -- 3740

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.2 23.99 -- -- -- 16655 1420 91.68 -- 0.23728 0.23257 0.29322 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.195 2.252 -- 98 1030 0.305 0.423 -- 80.28
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 29.034
Anisotropic B[1][1] -0.46
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.86
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.32
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 4.374
r_dihedral_angle_2_deg 34.22
r_dihedral_angle_3_deg 20.08
r_scbond_it 2.745
r_mcbond_it 0.996
r_dihedral_angle_1_deg 6.771
r_dihedral_angle_4_deg 18.925
r_gen_planes_refined 0.008
r_angle_refined_deg 1.783
r_chiral_restr 0.124
r_mcangle_it 1.843
r_bond_refined_d 0.02
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2703
Nucleic Acid Atoms 0
Heterogen Atoms 20
Solvent Atoms 43

Software

Software
Software Name Purpose
REFMAC refinement version: 5.5.0109
CNS refinement
ADSC data collection version: Quantum
DENZO data reduction
SCALEPACK data scaling
CNS phasing