X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5
Details 0.1M CITRIC ACID, PH 5, 20% PEG 6000

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 36.5 α = 90
b = 43.1 β = 90
c = 57 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 2007-11-30
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 -- ESRF BM14

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
1.8 30 99.6 0.12 -- -- 7.02 -- 8726 -- 2.0 --
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)
1.8 1.9 99.3 0.59 -- 3.86 7.13 --

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 1.8 30.0 -- -- -- 8131 614 99.7 -- 0.181 0.178 0.22 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 1.8 1.85 -- 51 576 0.211 0.244 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 17.79
Anisotropic B[1][1] 1.84
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.27
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.57
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 3.66
r_xyhbond_nbd_refined 0.093
r_mcangle_it 1.746
r_gen_planes_refined 0.007
r_dihedral_angle_3_deg 16.658
r_dihedral_angle_4_deg 13.164
r_angle_refined_deg 1.324
r_bond_refined_d 0.015
r_mcbond_it 1.162
r_dihedral_angle_1_deg 5.244
r_nbtor_refined 0.314
r_symmetry_hbond_refined 0.127
r_symmetry_vdw_refined 0.22
r_dihedral_angle_2_deg 33.794
r_scbond_it 2.365
r_chiral_restr 0.092
r_nbd_refined 0.202
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 852
Nucleic Acid Atoms 0
Heterogen Atoms 7
Solvent Atoms 51

Software

Software
Software Name Purpose
REFMAC refinement version: 5.3.0040
XDS data reduction
XSCALE data scaling
MOLREP phasing