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_mcangle_it 3.081
p_planar_tor 1.7
p_scangle_it 3.19
p_special_tor 0.0
p_bond_d 0.013
p_plane_restr 0.009
p_scbond_it 2.0
p_multtor_nbd 0.271
p_transverse_tor 25.3
p_mcbond_it 1.911
p_staggered_tor 23.6
p_planar_d 0.038
p_singtor_nbd 0.18
p_chiral_restr 0.183
p_xyhbond_nbd 0.212
p_angle_d 0.037
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

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SHARP phasing
REFMAC refinement