X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.7
Details PEG4000/SODIUM ACETATE., PH 4.70

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.47 α = 90
b = 84.9 β = 90
c = 133.99 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
CCD MARRESEARCH MIRRORS 2001-10-06
Diffraction Radiation
Monochromator Protocol
SI MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 0.9537,1.2825,1.2832 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
2 50 95.9 0.058 -- -- 2.0 -- 79319 -- -- 19.5
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)
2.01 2.08 72.1 0.238 -- 2.0 1.3 --

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
MAD 2.0 47.14 -- 0.0 -- 79258 3094 94.3 -- 0.18 0.18 0.22 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.6
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.006
c_dihedral_angle_d 20.53
c_angle_deg 1.24
c_improper_angle_d 0.84
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.29
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.33
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4660
Nucleic Acid Atoms 0
Heterogen Atoms 36
Solvent Atoms 570

Software

Software
Software Name Purpose
HKL-2000 data reduction
SCALEPACK data scaling
CCP4 phasing
CNS phasing
CNS refinement version: 1.1