X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details pH 6.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 74.05 α = 90
b = 83.78 β = 90
c = 113.95 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 BENT QUARTZ MIRROR 1996-05
Diffraction Radiation
Monochromator Protocol
GE(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX7.2 -- SRS PX7.2

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
2.05 27 98.3 0.081 0.081 -- 3.7 -- 161734 -- 0.0 36.3

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
DIFFERENCE FOURIER WITH INITIAL REFINEMENT 2.05 25.0 -- 0.0 43712 43712 1761 98.0 0.192 0.192 0.191 0.26 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TNT BCORREL
RMS Deviations
Key Refinement Restraint Deviation
t_bond_d 0.014
t_dihedral_angle_d 16.8
t_it 1.666
t_incorr_chiral_ct 0.0
t_angle_deg 2.1
t_trig_c_planes 0.008
t_gen_planes 0.012
t_nbd 0.03
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5573
Nucleic Acid Atoms 0
Heterogen Atoms 23
Solvent Atoms 325

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK, CCP4 Data Reduction (data scaling)
TNT, CCP4 Structure Solution
TNT V. 5-E Structure Refinement
Software
Software Name Purpose
TNT version: 5E refinement
TNT/CCP4 model building