X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.8
Details pH 6.8

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 67.68 α = 90
b = 80.81 β = 90
c = 143.51 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 -- 1996-02
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
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
1.7 25 91.2 0.068 -- -- 3.7 -- 79632 -- -3.0 19.22
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)
1.7 1.76 84.8 0.341 -- 3.3 -- --

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
SIRAS 1.8 25.0 -- -- -- 64534 3385 91.2 -- -- 0.1735 0.224 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.58
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 24.7
p_staggered_tor 15.2
p_planar_tor 4.0
p_multtor_nbd 0.18
p_bond_d 0.012
p_angle_d 0.029
p_planar_d 0.032
p_mcbond_it 1.301
p_mcangle_it 1.763
p_scbond_it 1.617
p_scangle_it 2.28
p_chiral_restr 0.119
p_singtor_nbd 0.175
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.249
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5696
Nucleic Acid Atoms 0
Heterogen Atoms 125
Solvent Atoms 718

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
HASSP, MLPHARE, DMMULTI, ENVAT Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
ENVAT model building
DMMULTI model building
MLPHARE model building
HASSP model building