X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 7.5
Details 15 MG/ML PROTEIN WERE CRYSTALLIZED BY VAPOR DIFFUSION AGAINST 20% PEG 4000, 10% 2-PROPANOL, 100MM HEPES, PH=7.5, vapor diffusion

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 57.75 α = 90
b = 80.75 β = 90
c = 95.51 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 280
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH FOCUSSING MONOCHROMATOR 1997-07-18
Diffraction Radiation
Monochromator Protocol
GE(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE D41A -- LURE D41A

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
2.25 62 98.4 -- 0.047 -- 6.15 -- 10769 -- 0.0 --
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)
2.25 2.33 97.1 -- 0.168 3.5 3.5 --

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
MULTIPLE ISOMORPHOUS REPLACEMENT 2.25 20.0 -- 0.0 -- 9679 1075 98.4 -- 0.246 0.227 0.303 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 36.1
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 25.3
p_staggered_tor 23.6
p_planar_tor 1.7
p_xyhbond_nbd 0.212
p_multtor_nbd 0.271
p_bond_d 0.013
p_angle_d 0.037
p_planar_d 0.038
p_mcbond_it 1.911
p_mcangle_it 3.081
p_scbond_it 2.0
p_scangle_it 3.19
p_plane_restr 0.009
p_chiral_restr 0.183
p_singtor_nbd 0.18
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Resolution Cutoff (Low) 20.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1475
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 63

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHARP Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
SHARP model building
SCALEPACK data reduction
DENZO data collection