X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7
Details SITTING DROP METHOD: A SOLUTION OF 12 MG OF PROTEIN PER ML IN 10 MM HEPES, PH 7.0, 2 MM CA-CHLORIDE, MIXED WITH AN EQUAL VOLUME OF 50 MM K-PHOSPHATE, PH 7.0 AND 20% (BY WEIGHT) PEG 8000, vapor diffusion - sitting drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 45.45 α = 90
b = 65.82 β = 106.87
c = 69.61 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 294
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH COLLIMATOR 1995-04
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU FR-D -- -- --

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
1.76 33.33 98.3 0.056 0.056 -- 3.4 -- 38698 -- -- 19.34
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)
1.76 1.83 94.4 0.164 0.16 4.5 3.2 --

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
MOLECULAR REPLACEMENT 1.8 33.33 -- 0.0 -- 35910 1786 98.3 -- -- 0.168 0.219 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.83
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.015
p_mcbond_it 2.207
p_special_tor 0.0
p_planar_d 0.035
p_chiral_restr 0.173
p_scbond_it 2.84
p_angle_d 0.033
p_scangle_it 4.099
p_planar_tor 4.9
p_staggered_tor 15.9
p_mcangle_it 3.131
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Resolution Cutoff (Low) 33.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3284
Nucleic Acid Atoms 0
Heterogen Atoms 38
Solvent Atoms 303

Software

Software
Software Name Purpose
DENZO data reduction
SCALA data scaling
AMoRE phasing
REFMAC refinement
CCP4 data scaling version: (SCALA)