X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 1.2M AMMONIUM SULPHATE, 4% PEG400, 0.1M HEPES PH7.5, ARGON ATMOSPHERE, 11MG/ML PROTEIN WITH 1MM FE(II), 2.5MM AKG AND 2.5MM PEPTIDE, pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 86.26 α = 90
b = 86.26 β = 90
c = 147.91 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC -- 2002-05-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.2 -- SRS PX14.2

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
2.25 38.63 100.0 0.058 -- -- 7.0 -- 27294 -- -- --
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)
2.25 2.37 100.0 0.307 -- 2.5 7.2 --

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 2.25 38.0 -- -- -- 25127 2104 100.0 -- 0.185 0.183 0.217 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 2.25 2.31 -- 170 1783 0.194 0.228 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.23
Anisotropic B[1][1] -0.4
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.4
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.8
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 3.111
r_scbond_it 1.887
r_mcangle_it 1.227
r_mcbond_it 0.649
r_nbd_refined 0.221
r_gen_planes_other 0.002
r_gen_planes_refined 0.005
r_chiral_restr 0.085
r_dihedral_angle_3_deg 18.189
r_dihedral_angle_1_deg 4.037
r_angle_other_deg 0.727
r_angle_refined_deg 1.404
r_bond_other_d 0.001
r_bond_refined_d 0.013
r_nbd_other 0.204
r_xyhbond_nbd_refined 0.156
r_symmetry_vdw_refined 0.256
r_symmetry_vdw_other 0.259
r_symmetry_hbond_refined 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2863
Nucleic Acid Atoms 0
Heterogen Atoms 21
Solvent Atoms 139

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
REFMAC 5.0 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.0 refinement