X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4
Details 0.2 M AMMONIUM SULPHATE, 0.1 M SODIUM ACETATE/ACETIC ACID (PH 4.0) AND 25% W/V PEG 3000

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.67 α = 90
b = 63.83 β = 86.58
c = 124.7 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-05-10
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-3 -- ESRF ID14-3

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
1.95 40 96.0 0.08 -- -- 3.5 -- 60806 -- 1.0 --
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)
1.95 2.02 92.1 0.39 -- 3.1 3.4 --

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 1.95 30.0 -- -- -- 56219 3002 96.2 -- 0.2 0.198 0.238 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 1.95 2.0 -- 180 3985 0.221 0.281 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 22.19
Anisotropic B[1][1] -0.76
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.11
Anisotropic B[2][2] 1.14
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.37
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 2.708
r_scbond_it 1.898
r_mcangle_it 1.242
r_mcbond_it 0.785
r_nbd_refined 0.197
r_gen_planes_refined 0.005
r_chiral_restr 0.09
r_dihedral_angle_4_deg 19.681
r_dihedral_angle_3_deg 13.671
r_dihedral_angle_2_deg 35.747
r_dihedral_angle_1_deg 6.753
r_angle_refined_deg 1.408
r_bond_refined_d 0.012
r_nbtor_refined 0.303
r_xyhbond_nbd_refined 0.124
r_symmetry_vdw_refined 0.221
r_symmetry_hbond_refined 0.163
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6757
Nucleic Acid Atoms 0
Heterogen Atoms 14
Solvent Atoms 287

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
REFMAC 5.2.0005 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.2.0005 refinement
CNS model building